stop tracking node_modules/

1 files changed, 0 insertions, 1632 deletions

diff --git a/node_modules/undici/lib/web/fetch/util.js b/node_modules/undici/lib/web/fetch/util.js
deleted file mode 100644
index 5101324..0000000
--- a/node_modules/undici/lib/web/fetch/util.js
+++ /dev/null
@@ -1,1632 +0,0 @@
-'use strict'
-
-const { Transform } = require('node:stream')
-const zlib = require('node:zlib')
-const { redirectStatusSet, referrerPolicySet: referrerPolicyTokens, badPortsSet } = require('./constants')
-const { getGlobalOrigin } = require('./global')
-const { collectASequenceOfCodePoints, collectAnHTTPQuotedString, removeChars, parseMIMEType } = require('./data-url')
-const { performance } = require('node:perf_hooks')
-const { isBlobLike, ReadableStreamFrom, isValidHTTPToken, normalizedMethodRecordsBase } = require('../../core/util')
-const assert = require('node:assert')
-const { isUint8Array } = require('node:util/types')
-const { webidl } = require('./webidl')
-
-let supportedHashes = []
-
-// https://nodejs.org/api/crypto.html#determining-if-crypto-support-is-unavailable
-/** @type {import('crypto')} */
-let crypto
-try {
-  crypto = require('node:crypto')
-  const possibleRelevantHashes = ['sha256', 'sha384', 'sha512']
-  supportedHashes = crypto.getHashes().filter((hash) => possibleRelevantHashes.includes(hash))
-/* c8 ignore next 3 */
-} catch {
-
-}
-
-function responseURL (response) {
-  // https://fetch.spec.whatwg.org/#responses
-  // A response has an associated URL. It is a pointer to the last URL
-  // in response’s URL list and null if response’s URL list is empty.
-  const urlList = response.urlList
-  const length = urlList.length
-  return length === 0 ? null : urlList[length - 1].toString()
-}
-
-// https://fetch.spec.whatwg.org/#concept-response-location-url
-function responseLocationURL (response, requestFragment) {
-  // 1. If response’s status is not a redirect status, then return null.
-  if (!redirectStatusSet.has(response.status)) {
-    return null
-  }
-
-  // 2. Let location be the result of extracting header list values given
-  // `Location` and response’s header list.
-  let location = response.headersList.get('location', true)
-
-  // 3. If location is a header value, then set location to the result of
-  //    parsing location with response’s URL.
-  if (location !== null && isValidHeaderValue(location)) {
-    if (!isValidEncodedURL(location)) {
-      // Some websites respond location header in UTF-8 form without encoding them as ASCII
-      // and major browsers redirect them to correctly UTF-8 encoded addresses.
-      // Here, we handle that behavior in the same way.
-      location = normalizeBinaryStringToUtf8(location)
-    }
-    location = new URL(location, responseURL(response))
-  }
-
-  // 4. If location is a URL whose fragment is null, then set location’s
-  // fragment to requestFragment.
-  if (location && !location.hash) {
-    location.hash = requestFragment
-  }
-
-  // 5. Return location.
-  return location
-}
-
-/**
- * @see https://www.rfc-editor.org/rfc/rfc1738#section-2.2
- * @param {string} url
- * @returns {boolean}
- */
-function isValidEncodedURL (url) {
-  for (let i = 0; i < url.length; ++i) {
-    const code = url.charCodeAt(i)
-
-    if (
-      code > 0x7E || // Non-US-ASCII + DEL
-      code < 0x20 // Control characters NUL - US
-    ) {
-      return false
-    }
-  }
-  return true
-}
-
-/**
- * If string contains non-ASCII characters, assumes it's UTF-8 encoded and decodes it.
- * Since UTF-8 is a superset of ASCII, this will work for ASCII strings as well.
- * @param {string} value
- * @returns {string}
- */
-function normalizeBinaryStringToUtf8 (value) {
-  return Buffer.from(value, 'binary').toString('utf8')
-}
-
-/** @returns {URL} */
-function requestCurrentURL (request) {
-  return request.urlList[request.urlList.length - 1]
-}
-
-function requestBadPort (request) {
-  // 1. Let url be request’s current URL.
-  const url = requestCurrentURL(request)
-
-  // 2. If url’s scheme is an HTTP(S) scheme and url’s port is a bad port,
-  // then return blocked.
-  if (urlIsHttpHttpsScheme(url) && badPortsSet.has(url.port)) {
-    return 'blocked'
-  }
-
-  // 3. Return allowed.
-  return 'allowed'
-}
-
-function isErrorLike (object) {
-  return object instanceof Error || (
-    object?.constructor?.name === 'Error' ||
-    object?.constructor?.name === 'DOMException'
-  )
-}
-
-// Check whether |statusText| is a ByteString and
-// matches the Reason-Phrase token production.
-// RFC 2616: https://tools.ietf.org/html/rfc2616
-// RFC 7230: https://tools.ietf.org/html/rfc7230
-// "reason-phrase = *( HTAB / SP / VCHAR / obs-text )"
-// https://github.com/chromium/chromium/blob/94.0.4604.1/third_party/blink/renderer/core/fetch/response.cc#L116
-function isValidReasonPhrase (statusText) {
-  for (let i = 0; i < statusText.length; ++i) {
-    const c = statusText.charCodeAt(i)
-    if (
-      !(
-        (
-          c === 0x09 || // HTAB
-          (c >= 0x20 && c <= 0x7e) || // SP / VCHAR
-          (c >= 0x80 && c <= 0xff)
-        ) // obs-text
-      )
-    ) {
-      return false
-    }
-  }
-  return true
-}
-
-/**
- * @see https://fetch.spec.whatwg.org/#header-name
- * @param {string} potentialValue
- */
-const isValidHeaderName = isValidHTTPToken
-
-/**
- * @see https://fetch.spec.whatwg.org/#header-value
- * @param {string} potentialValue
- */
-function isValidHeaderValue (potentialValue) {
-  // - Has no leading or trailing HTTP tab or space bytes.
-  // - Contains no 0x00 (NUL) or HTTP newline bytes.
-  return (
-    potentialValue[0] === '\t' ||
-    potentialValue[0] === ' ' ||
-    potentialValue[potentialValue.length - 1] === '\t' ||
-    potentialValue[potentialValue.length - 1] === ' ' ||
-    potentialValue.includes('\n') ||
-    potentialValue.includes('\r') ||
-    potentialValue.includes('\0')
-  ) === false
-}
-
-// https://w3c.github.io/webappsec-referrer-policy/#set-requests-referrer-policy-on-redirect
-function setRequestReferrerPolicyOnRedirect (request, actualResponse) {
-  //  Given a request request and a response actualResponse, this algorithm
-  //  updates request’s referrer policy according to the Referrer-Policy
-  //  header (if any) in actualResponse.
-
-  // 1. Let policy be the result of executing § 8.1 Parse a referrer policy
-  // from a Referrer-Policy header on actualResponse.
-
-  // 8.1 Parse a referrer policy from a Referrer-Policy header
-  // 1. Let policy-tokens be the result of extracting header list values given `Referrer-Policy` and response’s header list.
-  const { headersList } = actualResponse
-  // 2. Let policy be the empty string.
-  // 3. For each token in policy-tokens, if token is a referrer policy and token is not the empty string, then set policy to token.
-  // 4. Return policy.
-  const policyHeader = (headersList.get('referrer-policy', true) ?? '').split(',')
-
-  // Note: As the referrer-policy can contain multiple policies
-  // separated by comma, we need to loop through all of them
-  // and pick the first valid one.
-  // Ref: https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Referrer-Policy#specify_a_fallback_policy
-  let policy = ''
-  if (policyHeader.length > 0) {
-    // The right-most policy takes precedence.
-    // The left-most policy is the fallback.
-    for (let i = policyHeader.length; i !== 0; i--) {
-      const token = policyHeader[i - 1].trim()
-      if (referrerPolicyTokens.has(token)) {
-        policy = token
-        break
-      }
-    }
-  }
-
-  // 2. If policy is not the empty string, then set request’s referrer policy to policy.
-  if (policy !== '') {
-    request.referrerPolicy = policy
-  }
-}
-
-// https://fetch.spec.whatwg.org/#cross-origin-resource-policy-check
-function crossOriginResourcePolicyCheck () {
-  // TODO
-  return 'allowed'
-}
-
-// https://fetch.spec.whatwg.org/#concept-cors-check
-function corsCheck () {
-  // TODO
-  return 'success'
-}
-
-// https://fetch.spec.whatwg.org/#concept-tao-check
-function TAOCheck () {
-  // TODO
-  return 'success'
-}
-
-function appendFetchMetadata (httpRequest) {
-  //  https://w3c.github.io/webappsec-fetch-metadata/#sec-fetch-dest-header
-  //  TODO
-
-  //  https://w3c.github.io/webappsec-fetch-metadata/#sec-fetch-mode-header
-
-  //  1. Assert: r’s url is a potentially trustworthy URL.
-  //  TODO
-
-  //  2. Let header be a Structured Header whose value is a token.
-  let header = null
-
-  //  3. Set header’s value to r’s mode.
-  header = httpRequest.mode
-
-  //  4. Set a structured field value `Sec-Fetch-Mode`/header in r’s header list.
-  httpRequest.headersList.set('sec-fetch-mode', header, true)
-
-  //  https://w3c.github.io/webappsec-fetch-metadata/#sec-fetch-site-header
-  //  TODO
-
-  //  https://w3c.github.io/webappsec-fetch-metadata/#sec-fetch-user-header
-  //  TODO
-}
-
-// https://fetch.spec.whatwg.org/#append-a-request-origin-header
-function appendRequestOriginHeader (request) {
-  // 1. Let serializedOrigin be the result of byte-serializing a request origin
-  //    with request.
-  // TODO: implement "byte-serializing a request origin"
-  let serializedOrigin = request.origin
-
-  // - "'client' is changed to an origin during fetching."
-  //   This doesn't happen in undici (in most cases) because undici, by default,
-  //   has no concept of origin.
-  // - request.origin can also be set to request.client.origin (client being
-  //   an environment settings object), which is undefined without using
-  //   setGlobalOrigin.
-  if (serializedOrigin === 'client' || serializedOrigin === undefined) {
-    return
-  }
-
-  // 2. If request’s response tainting is "cors" or request’s mode is "websocket",
-  //    then append (`Origin`, serializedOrigin) to request’s header list.
-  // 3. Otherwise, if request’s method is neither `GET` nor `HEAD`, then:
-  if (request.responseTainting === 'cors' || request.mode === 'websocket') {
-    request.headersList.append('origin', serializedOrigin, true)
-  } else if (request.method !== 'GET' && request.method !== 'HEAD') {
-    // 1. Switch on request’s referrer policy:
-    switch (request.referrerPolicy) {
-      case 'no-referrer':
-        // Set serializedOrigin to `null`.
-        serializedOrigin = null
-        break
-      case 'no-referrer-when-downgrade':
-      case 'strict-origin':
-      case 'strict-origin-when-cross-origin':
-        // If request’s origin is a tuple origin, its scheme is "https", and
-        // request’s current URL’s scheme is not "https", then set
-        // serializedOrigin to `null`.
-        if (request.origin && urlHasHttpsScheme(request.origin) && !urlHasHttpsScheme(requestCurrentURL(request))) {
-          serializedOrigin = null
-        }
-        break
-      case 'same-origin':
-        // If request’s origin is not same origin with request’s current URL’s
-        // origin, then set serializedOrigin to `null`.
-        if (!sameOrigin(request, requestCurrentURL(request))) {
-          serializedOrigin = null
-        }
-        break
-      default:
-        // Do nothing.
-    }
-
-    // 2. Append (`Origin`, serializedOrigin) to request’s header list.
-    request.headersList.append('origin', serializedOrigin, true)
-  }
-}
-
-// https://w3c.github.io/hr-time/#dfn-coarsen-time
-function coarsenTime (timestamp, crossOriginIsolatedCapability) {
-  // TODO
-  return timestamp
-}
-
-// https://fetch.spec.whatwg.org/#clamp-and-coarsen-connection-timing-info
-function clampAndCoarsenConnectionTimingInfo (connectionTimingInfo, defaultStartTime, crossOriginIsolatedCapability) {
-  if (!connectionTimingInfo?.startTime || connectionTimingInfo.startTime < defaultStartTime) {
-    return {
-      domainLookupStartTime: defaultStartTime,
-      domainLookupEndTime: defaultStartTime,
-      connectionStartTime: defaultStartTime,
-      connectionEndTime: defaultStartTime,
-      secureConnectionStartTime: defaultStartTime,
-      ALPNNegotiatedProtocol: connectionTimingInfo?.ALPNNegotiatedProtocol
-    }
-  }
-
-  return {
-    domainLookupStartTime: coarsenTime(connectionTimingInfo.domainLookupStartTime, crossOriginIsolatedCapability),
-    domainLookupEndTime: coarsenTime(connectionTimingInfo.domainLookupEndTime, crossOriginIsolatedCapability),
-    connectionStartTime: coarsenTime(connectionTimingInfo.connectionStartTime, crossOriginIsolatedCapability),
-    connectionEndTime: coarsenTime(connectionTimingInfo.connectionEndTime, crossOriginIsolatedCapability),
-    secureConnectionStartTime: coarsenTime(connectionTimingInfo.secureConnectionStartTime, crossOriginIsolatedCapability),
-    ALPNNegotiatedProtocol: connectionTimingInfo.ALPNNegotiatedProtocol
-  }
-}
-
-// https://w3c.github.io/hr-time/#dfn-coarsened-shared-current-time
-function coarsenedSharedCurrentTime (crossOriginIsolatedCapability) {
-  return coarsenTime(performance.now(), crossOriginIsolatedCapability)
-}
-
-// https://fetch.spec.whatwg.org/#create-an-opaque-timing-info
-function createOpaqueTimingInfo (timingInfo) {
-  return {
-    startTime: timingInfo.startTime ?? 0,
-    redirectStartTime: 0,
-    redirectEndTime: 0,
-    postRedirectStartTime: timingInfo.startTime ?? 0,
-    finalServiceWorkerStartTime: 0,
-    finalNetworkResponseStartTime: 0,
-    finalNetworkRequestStartTime: 0,
-    endTime: 0,
-    encodedBodySize: 0,
-    decodedBodySize: 0,
-    finalConnectionTimingInfo: null
-  }
-}
-
-// https://html.spec.whatwg.org/multipage/origin.html#policy-container
-function makePolicyContainer () {
-  // Note: the fetch spec doesn't make use of embedder policy or CSP list
-  return {
-    referrerPolicy: 'strict-origin-when-cross-origin'
-  }
-}
-
-// https://html.spec.whatwg.org/multipage/origin.html#clone-a-policy-container
-function clonePolicyContainer (policyContainer) {
-  return {
-    referrerPolicy: policyContainer.referrerPolicy
-  }
-}
-
-// https://w3c.github.io/webappsec-referrer-policy/#determine-requests-referrer
-function determineRequestsReferrer (request) {
-  // 1. Let policy be request's referrer policy.
-  const policy = request.referrerPolicy
-
-  // Note: policy cannot (shouldn't) be null or an empty string.
-  assert(policy)
-
-  // 2. Let environment be request’s client.
-
-  let referrerSource = null
-
-  // 3. Switch on request’s referrer:
-  if (request.referrer === 'client') {
-    // Note: node isn't a browser and doesn't implement document/iframes,
-    // so we bypass this step and replace it with our own.
-
-    const globalOrigin = getGlobalOrigin()
-
-    if (!globalOrigin || globalOrigin.origin === 'null') {
-      return 'no-referrer'
-    }
-
-    // note: we need to clone it as it's mutated
-    referrerSource = new URL(globalOrigin)
-  } else if (request.referrer instanceof URL) {
-    // Let referrerSource be request’s referrer.
-    referrerSource = request.referrer
-  }
-
-  // 4. Let request’s referrerURL be the result of stripping referrerSource for
-  //    use as a referrer.
-  let referrerURL = stripURLForReferrer(referrerSource)
-
-  // 5. Let referrerOrigin be the result of stripping referrerSource for use as
-  //    a referrer, with the origin-only flag set to true.
-  const referrerOrigin = stripURLForReferrer(referrerSource, true)
-
-  // 6. If the result of serializing referrerURL is a string whose length is
-  //    greater than 4096, set referrerURL to referrerOrigin.
-  if (referrerURL.toString().length > 4096) {
-    referrerURL = referrerOrigin
-  }
-
-  const areSameOrigin = sameOrigin(request, referrerURL)
-  const isNonPotentiallyTrustWorthy = isURLPotentiallyTrustworthy(referrerURL) &&
-    !isURLPotentiallyTrustworthy(request.url)
-
-  // 8. Execute the switch statements corresponding to the value of policy:
-  switch (policy) {
-    case 'origin': return referrerOrigin != null ? referrerOrigin : stripURLForReferrer(referrerSource, true)
-    case 'unsafe-url': return referrerURL
-    case 'same-origin':
-      return areSameOrigin ? referrerOrigin : 'no-referrer'
-    case 'origin-when-cross-origin':
-      return areSameOrigin ? referrerURL : referrerOrigin
-    case 'strict-origin-when-cross-origin': {
-      const currentURL = requestCurrentURL(request)
-
-      // 1. If the origin of referrerURL and the origin of request’s current
-      //    URL are the same, then return referrerURL.
-      if (sameOrigin(referrerURL, currentURL)) {
-        return referrerURL
-      }
-
-      // 2. If referrerURL is a potentially trustworthy URL and request’s
-      //    current URL is not a potentially trustworthy URL, then return no
-      //    referrer.
-      if (isURLPotentiallyTrustworthy(referrerURL) && !isURLPotentiallyTrustworthy(currentURL)) {
-        return 'no-referrer'
-      }
-
-      // 3. Return referrerOrigin.
-      return referrerOrigin
-    }
-    case 'strict-origin': // eslint-disable-line
-      /**
-         * 1. If referrerURL is a potentially trustworthy URL and
-         * request’s current URL is not a potentially trustworthy URL,
-         * then return no referrer.
-         * 2. Return referrerOrigin
-        */
-    case 'no-referrer-when-downgrade': // eslint-disable-line
-      /**
-       * 1. If referrerURL is a potentially trustworthy URL and
-       * request’s current URL is not a potentially trustworthy URL,
-       * then return no referrer.
-       * 2. Return referrerOrigin
-      */
-
-    default: // eslint-disable-line
-      return isNonPotentiallyTrustWorthy ? 'no-referrer' : referrerOrigin
-  }
-}
-
-/**
- * @see https://w3c.github.io/webappsec-referrer-policy/#strip-url
- * @param {URL} url
- * @param {boolean|undefined} originOnly
- */
-function stripURLForReferrer (url, originOnly) {
-  // 1. Assert: url is a URL.
-  assert(url instanceof URL)
-
-  url = new URL(url)
-
-  // 2. If url’s scheme is a local scheme, then return no referrer.
-  if (url.protocol === 'file:' || url.protocol === 'about:' || url.protocol === 'blank:') {
-    return 'no-referrer'
-  }
-
-  // 3. Set url’s username to the empty string.
-  url.username = ''
-
-  // 4. Set url’s password to the empty string.
-  url.password = ''
-
-  // 5. Set url’s fragment to null.
-  url.hash = ''
-
-  // 6. If the origin-only flag is true, then:
-  if (originOnly) {
-    // 1. Set url’s path to « the empty string ».
-    url.pathname = ''
-
-    // 2. Set url’s query to null.
-    url.search = ''
-  }
-
-  // 7. Return url.
-  return url
-}
-
-function isURLPotentiallyTrustworthy (url) {
-  if (!(url instanceof URL)) {
-    return false
-  }
-
-  // If child of about, return true
-  if (url.href === 'about:blank' || url.href === 'about:srcdoc') {
-    return true
-  }
-
-  // If scheme is data, return true
-  if (url.protocol === 'data:') return true
-
-  // If file, return true
-  if (url.protocol === 'file:') return true
-
-  return isOriginPotentiallyTrustworthy(url.origin)
-
-  function isOriginPotentiallyTrustworthy (origin) {
-    // If origin is explicitly null, return false
-    if (origin == null || origin === 'null') return false
-
-    const originAsURL = new URL(origin)
-
-    // If secure, return true
-    if (originAsURL.protocol === 'https:' || originAsURL.protocol === 'wss:') {
-      return true
-    }
-
-    // If localhost or variants, return true
-    if (/^127(?:\.[0-9]+){0,2}\.[0-9]+$|^\[(?:0*:)*?:?0*1\]$/.test(originAsURL.hostname) ||
-     (originAsURL.hostname === 'localhost' || originAsURL.hostname.includes('localhost.')) ||
-     (originAsURL.hostname.endsWith('.localhost'))) {
-      return true
-    }
-
-    // If any other, return false
-    return false
-  }
-}
-
-/**
- * @see https://w3c.github.io/webappsec-subresource-integrity/#does-response-match-metadatalist
- * @param {Uint8Array} bytes
- * @param {string} metadataList
- */
-function bytesMatch (bytes, metadataList) {
-  // If node is not built with OpenSSL support, we cannot check
-  // a request's integrity, so allow it by default (the spec will
-  // allow requests if an invalid hash is given, as precedence).
-  /* istanbul ignore if: only if node is built with --without-ssl */
-  if (crypto === undefined) {
-    return true
-  }
-
-  // 1. Let parsedMetadata be the result of parsing metadataList.
-  const parsedMetadata = parseMetadata(metadataList)
-
-  // 2. If parsedMetadata is no metadata, return true.
-  if (parsedMetadata === 'no metadata') {
-    return true
-  }
-
-  // 3. If response is not eligible for integrity validation, return false.
-  // TODO
-
-  // 4. If parsedMetadata is the empty set, return true.
-  if (parsedMetadata.length === 0) {
-    return true
-  }
-
-  // 5. Let metadata be the result of getting the strongest
-  //    metadata from parsedMetadata.
-  const strongest = getStrongestMetadata(parsedMetadata)
-  const metadata = filterMetadataListByAlgorithm(parsedMetadata, strongest)
-
-  // 6. For each item in metadata:
-  for (const item of metadata) {
-    // 1. Let algorithm be the alg component of item.
-    const algorithm = item.algo
-
-    // 2. Let expectedValue be the val component of item.
-    const expectedValue = item.hash
-
-    // See https://github.com/web-platform-tests/wpt/commit/e4c5cc7a5e48093220528dfdd1c4012dc3837a0e
-    // "be liberal with padding". This is annoying, and it's not even in the spec.
-
-    // 3. Let actualValue be the result of applying algorithm to bytes.
-    let actualValue = crypto.createHash(algorithm).update(bytes).digest('base64')
-
-    if (actualValue[actualValue.length - 1] === '=') {
-      if (actualValue[actualValue.length - 2] === '=') {
-        actualValue = actualValue.slice(0, -2)
-      } else {
-        actualValue = actualValue.slice(0, -1)
-      }
-    }
-
-    // 4. If actualValue is a case-sensitive match for expectedValue,
-    //    return true.
-    if (compareBase64Mixed(actualValue, expectedValue)) {
-      return true
-    }
-  }
-
-  // 7. Return false.
-  return false
-}
-
-// https://w3c.github.io/webappsec-subresource-integrity/#grammardef-hash-with-options
-// https://www.w3.org/TR/CSP2/#source-list-syntax
-// https://www.rfc-editor.org/rfc/rfc5234#appendix-B.1
-const parseHashWithOptions = /(?<algo>sha256|sha384|sha512)-((?<hash>[A-Za-z0-9+/]+|[A-Za-z0-9_-]+)={0,2}(?:\s|$)( +[!-~]*)?)?/i
-
-/**
- * @see https://w3c.github.io/webappsec-subresource-integrity/#parse-metadata
- * @param {string} metadata
- */
-function parseMetadata (metadata) {
-  // 1. Let result be the empty set.
-  /** @type {{ algo: string, hash: string }[]} */
-  const result = []
-
-  // 2. Let empty be equal to true.
-  let empty = true
-
-  // 3. For each token returned by splitting metadata on spaces:
-  for (const token of metadata.split(' ')) {
-    // 1. Set empty to false.
-    empty = false
-
-    // 2. Parse token as a hash-with-options.
-    const parsedToken = parseHashWithOptions.exec(token)
-
-    // 3. If token does not parse, continue to the next token.
-    if (
-      parsedToken === null ||
-      parsedToken.groups === undefined ||
-      parsedToken.groups.algo === undefined
-    ) {
-      // Note: Chromium blocks the request at this point, but Firefox
-      // gives a warning that an invalid integrity was given. The
-      // correct behavior is to ignore these, and subsequently not
-      // check the integrity of the resource.
-      continue
-    }
-
-    // 4. Let algorithm be the hash-algo component of token.
-    const algorithm = parsedToken.groups.algo.toLowerCase()
-
-    // 5. If algorithm is a hash function recognized by the user
-    //    agent, add the parsed token to result.
-    if (supportedHashes.includes(algorithm)) {
-      result.push(parsedToken.groups)
-    }
-  }
-
-  // 4. Return no metadata if empty is true, otherwise return result.
-  if (empty === true) {
-    return 'no metadata'
-  }
-
-  return result
-}
-
-/**
- * @param {{ algo: 'sha256' | 'sha384' | 'sha512' }[]} metadataList
- */
-function getStrongestMetadata (metadataList) {
-  // Let algorithm be the algo component of the first item in metadataList.
-  // Can be sha256
-  let algorithm = metadataList[0].algo
-  // If the algorithm is sha512, then it is the strongest
-  // and we can return immediately
-  if (algorithm[3] === '5') {
-    return algorithm
-  }
-
-  for (let i = 1; i < metadataList.length; ++i) {
-    const metadata = metadataList[i]
-    // If the algorithm is sha512, then it is the strongest
-    // and we can break the loop immediately
-    if (metadata.algo[3] === '5') {
-      algorithm = 'sha512'
-      break
-    // If the algorithm is sha384, then a potential sha256 or sha384 is ignored
-    } else if (algorithm[3] === '3') {
-      continue
-    // algorithm is sha256, check if algorithm is sha384 and if so, set it as
-    // the strongest
-    } else if (metadata.algo[3] === '3') {
-      algorithm = 'sha384'
-    }
-  }
-  return algorithm
-}
-
-function filterMetadataListByAlgorithm (metadataList, algorithm) {
-  if (metadataList.length === 1) {
-    return metadataList
-  }
-
-  let pos = 0
-  for (let i = 0; i < metadataList.length; ++i) {
-    if (metadataList[i].algo === algorithm) {
-      metadataList[pos++] = metadataList[i]
-    }
-  }
-
-  metadataList.length = pos
-
-  return metadataList
-}
-
-/**
- * Compares two base64 strings, allowing for base64url
- * in the second string.
- *
-* @param {string} actualValue always base64
- * @param {string} expectedValue base64 or base64url
- * @returns {boolean}
- */
-function compareBase64Mixed (actualValue, expectedValue) {
-  if (actualValue.length !== expectedValue.length) {
-    return false
-  }
-  for (let i = 0; i < actualValue.length; ++i) {
-    if (actualValue[i] !== expectedValue[i]) {
-      if (
-        (actualValue[i] === '+' && expectedValue[i] === '-') ||
-        (actualValue[i] === '/' && expectedValue[i] === '_')
-      ) {
-        continue
-      }
-      return false
-    }
-  }
-
-  return true
-}
-
-// https://w3c.github.io/webappsec-upgrade-insecure-requests/#upgrade-request
-function tryUpgradeRequestToAPotentiallyTrustworthyURL (request) {
-  // TODO
-}
-
-/**
- * @link {https://html.spec.whatwg.org/multipage/origin.html#same-origin}
- * @param {URL} A
- * @param {URL} B
- */
-function sameOrigin (A, B) {
-  // 1. If A and B are the same opaque origin, then return true.
-  if (A.origin === B.origin && A.origin === 'null') {
-    return true
-  }
-
-  // 2. If A and B are both tuple origins and their schemes,
-  //    hosts, and port are identical, then return true.
-  if (A.protocol === B.protocol && A.hostname === B.hostname && A.port === B.port) {
-    return true
-  }
-
-  // 3. Return false.
-  return false
-}
-
-function createDeferredPromise () {
-  let res
-  let rej
-  const promise = new Promise((resolve, reject) => {
-    res = resolve
-    rej = reject
-  })
-
-  return { promise, resolve: res, reject: rej }
-}
-
-function isAborted (fetchParams) {
-  return fetchParams.controller.state === 'aborted'
-}
-
-function isCancelled (fetchParams) {
-  return fetchParams.controller.state === 'aborted' ||
-    fetchParams.controller.state === 'terminated'
-}
-
-/**
- * @see https://fetch.spec.whatwg.org/#concept-method-normalize
- * @param {string} method
- */
-function normalizeMethod (method) {
-  return normalizedMethodRecordsBase[method.toLowerCase()] ?? method
-}
-
-// https://infra.spec.whatwg.org/#serialize-a-javascript-value-to-a-json-string
-function serializeJavascriptValueToJSONString (value) {
-  // 1. Let result be ? Call(%JSON.stringify%, undefined, « value »).
-  const result = JSON.stringify(value)
-
-  // 2. If result is undefined, then throw a TypeError.
-  if (result === undefined) {
-    throw new TypeError('Value is not JSON serializable')
-  }
-
-  // 3. Assert: result is a string.
-  assert(typeof result === 'string')
-
-  // 4. Return result.
-  return result
-}
-
-// https://tc39.es/ecma262/#sec-%25iteratorprototype%25-object
-const esIteratorPrototype = Object.getPrototypeOf(Object.getPrototypeOf([][Symbol.iterator]()))
-
-/**
- * @see https://webidl.spec.whatwg.org/#dfn-iterator-prototype-object
- * @param {string} name name of the instance
- * @param {symbol} kInternalIterator
- * @param {string | number} [keyIndex]
- * @param {string | number} [valueIndex]
- */
-function createIterator (name, kInternalIterator, keyIndex = 0, valueIndex = 1) {
-  class FastIterableIterator {
-    /** @type {any} */
-    #target
-    /** @type {'key' | 'value' | 'key+value'} */
-    #kind
-    /** @type {number} */
-    #index
-
-    /**
-     * @see https://webidl.spec.whatwg.org/#dfn-default-iterator-object
-     * @param {unknown} target
-     * @param {'key' | 'value' | 'key+value'} kind
-     */
-    constructor (target, kind) {
-      this.#target = target
-      this.#kind = kind
-      this.#index = 0
-    }
-
-    next () {
-      // 1. Let interface be the interface for which the iterator prototype object exists.
-      // 2. Let thisValue be the this value.
-      // 3. Let object be ? ToObject(thisValue).
-      // 4. If object is a platform object, then perform a security
-      //    check, passing:
-      // 5. If object is not a default iterator object for interface,
-      //    then throw a TypeError.
-      if (typeof this !== 'object' || this === null || !(#target in this)) {
-        throw new TypeError(
-          `'next' called on an object that does not implement interface ${name} Iterator.`
-        )
-      }
-
-      // 6. Let index be object’s index.
-      // 7. Let kind be object’s kind.
-      // 8. Let values be object’s target's value pairs to iterate over.
-      const index = this.#index
-      const values = this.#target[kInternalIterator]
-
-      // 9. Let len be the length of values.
-      const len = values.length
-
-      // 10. If index is greater than or equal to len, then return
-      //     CreateIterResultObject(undefined, true).
-      if (index >= len) {
-        return {
-          value: undefined,
-          done: true
-        }
-      }
-
-      // 11. Let pair be the entry in values at index index.
-      const { [keyIndex]: key, [valueIndex]: value } = values[index]
-
-      // 12. Set object’s index to index + 1.
-      this.#index = index + 1
-
-      // 13. Return the iterator result for pair and kind.
-
-      // https://webidl.spec.whatwg.org/#iterator-result
-
-      // 1. Let result be a value determined by the value of kind:
-      let result
-      switch (this.#kind) {
-        case 'key':
-          // 1. Let idlKey be pair’s key.
-          // 2. Let key be the result of converting idlKey to an
-          //    ECMAScript value.
-          // 3. result is key.
-          result = key
-          break
-        case 'value':
-          // 1. Let idlValue be pair’s value.
-          // 2. Let value be the result of converting idlValue to
-          //    an ECMAScript value.
-          // 3. result is value.
-          result = value
-          break
-        case 'key+value':
-          // 1. Let idlKey be pair’s key.
-          // 2. Let idlValue be pair’s value.
-          // 3. Let key be the result of converting idlKey to an
-          //    ECMAScript value.
-          // 4. Let value be the result of converting idlValue to
-          //    an ECMAScript value.
-          // 5. Let array be ! ArrayCreate(2).
-          // 6. Call ! CreateDataProperty(array, "0", key).
-          // 7. Call ! CreateDataProperty(array, "1", value).
-          // 8. result is array.
-          result = [key, value]
-          break
-      }
-
-      // 2. Return CreateIterResultObject(result, false).
-      return {
-        value: result,
-        done: false
-      }
-    }
-  }
-
-  // https://webidl.spec.whatwg.org/#dfn-iterator-prototype-object
-  // @ts-ignore
-  delete FastIterableIterator.prototype.constructor
-
-  Object.setPrototypeOf(FastIterableIterator.prototype, esIteratorPrototype)
-
-  Object.defineProperties(FastIterableIterator.prototype, {
-    [Symbol.toStringTag]: {
-      writable: false,
-      enumerable: false,
-      configurable: true,
-      value: `${name} Iterator`
-    },
-    next: { writable: true, enumerable: true, configurable: true }
-  })
-
-  /**
-   * @param {unknown} target
-   * @param {'key' | 'value' | 'key+value'} kind
-   * @returns {IterableIterator<any>}
-   */
-  return function (target, kind) {
-    return new FastIterableIterator(target, kind)
-  }
-}
-
-/**
- * @see https://webidl.spec.whatwg.org/#dfn-iterator-prototype-object
- * @param {string} name name of the instance
- * @param {any} object class
- * @param {symbol} kInternalIterator
- * @param {string | number} [keyIndex]
- * @param {string | number} [valueIndex]
- */
-function iteratorMixin (name, object, kInternalIterator, keyIndex = 0, valueIndex = 1) {
-  const makeIterator = createIterator(name, kInternalIterator, keyIndex, valueIndex)
-
-  const properties = {
-    keys: {
-      writable: true,
-      enumerable: true,
-      configurable: true,
-      value: function keys () {
-        webidl.brandCheck(this, object)
-        return makeIterator(this, 'key')
-      }
-    },
-    values: {
-      writable: true,
-      enumerable: true,
-      configurable: true,
-      value: function values () {
-        webidl.brandCheck(this, object)
-        return makeIterator(this, 'value')
-      }
-    },
-    entries: {
-      writable: true,
-      enumerable: true,
-      configurable: true,
-      value: function entries () {
-        webidl.brandCheck(this, object)
-        return makeIterator(this, 'key+value')
-      }
-    },
-    forEach: {
-      writable: true,
-      enumerable: true,
-      configurable: true,
-      value: function forEach (callbackfn, thisArg = globalThis) {
-        webidl.brandCheck(this, object)
-        webidl.argumentLengthCheck(arguments, 1, `${name}.forEach`)
-        if (typeof callbackfn !== 'function') {
-          throw new TypeError(
-            `Failed to execute 'forEach' on '${name}': parameter 1 is not of type 'Function'.`
-          )
-        }
-        for (const { 0: key, 1: value } of makeIterator(this, 'key+value')) {
-          callbackfn.call(thisArg, value, key, this)
-        }
-      }
-    }
-  }
-
-  return Object.defineProperties(object.prototype, {
-    ...properties,
-    [Symbol.iterator]: {
-      writable: true,
-      enumerable: false,
-      configurable: true,
-      value: properties.entries.value
-    }
-  })
-}
-
-/**
- * @see https://fetch.spec.whatwg.org/#body-fully-read
- */
-async function fullyReadBody (body, processBody, processBodyError) {
-  // 1. If taskDestination is null, then set taskDestination to
-  //    the result of starting a new parallel queue.
-
-  // 2. Let successSteps given a byte sequence bytes be to queue a
-  //    fetch task to run processBody given bytes, with taskDestination.
-  const successSteps = processBody
-
-  // 3. Let errorSteps be to queue a fetch task to run processBodyError,
-  //    with taskDestination.
-  const errorSteps = processBodyError
-
-  // 4. Let reader be the result of getting a reader for body’s stream.
-  //    If that threw an exception, then run errorSteps with that
-  //    exception and return.
-  let reader
-
-  try {
-    reader = body.stream.getReader()
-  } catch (e) {
-    errorSteps(e)
-    return
-  }
-
-  // 5. Read all bytes from reader, given successSteps and errorSteps.
-  try {
-    successSteps(await readAllBytes(reader))
-  } catch (e) {
-    errorSteps(e)
-  }
-}
-
-function isReadableStreamLike (stream) {
-  return stream instanceof ReadableStream || (
-    stream[Symbol.toStringTag] === 'ReadableStream' &&
-    typeof stream.tee === 'function'
-  )
-}
-
-/**
- * @param {ReadableStreamController<Uint8Array>} controller
- */
-function readableStreamClose (controller) {
-  try {
-    controller.close()
-    controller.byobRequest?.respond(0)
-  } catch (err) {
-    // TODO: add comment explaining why this error occurs.
-    if (!err.message.includes('Controller is already closed') && !err.message.includes('ReadableStream is already closed')) {
-      throw err
-    }
-  }
-}
-
-const invalidIsomorphicEncodeValueRegex = /[^\x00-\xFF]/ // eslint-disable-line
-
-/**
- * @see https://infra.spec.whatwg.org/#isomorphic-encode
- * @param {string} input
- */
-function isomorphicEncode (input) {
-  // 1. Assert: input contains no code points greater than U+00FF.
-  assert(!invalidIsomorphicEncodeValueRegex.test(input))
-
-  // 2. Return a byte sequence whose length is equal to input’s code
-  //    point length and whose bytes have the same values as the
-  //    values of input’s code points, in the same order
-  return input
-}
-
-/**
- * @see https://streams.spec.whatwg.org/#readablestreamdefaultreader-read-all-bytes
- * @see https://streams.spec.whatwg.org/#read-loop
- * @param {ReadableStreamDefaultReader} reader
- */
-async function readAllBytes (reader) {
-  const bytes = []
-  let byteLength = 0
-
-  while (true) {
-    const { done, value: chunk } = await reader.read()
-
-    if (done) {
-      // 1. Call successSteps with bytes.
-      return Buffer.concat(bytes, byteLength)
-    }
-
-    // 1. If chunk is not a Uint8Array object, call failureSteps
-    //    with a TypeError and abort these steps.
-    if (!isUint8Array(chunk)) {
-      throw new TypeError('Received non-Uint8Array chunk')
-    }
-
-    // 2. Append the bytes represented by chunk to bytes.
-    bytes.push(chunk)
-    byteLength += chunk.length
-
-    // 3. Read-loop given reader, bytes, successSteps, and failureSteps.
-  }
-}
-
-/**
- * @see https://fetch.spec.whatwg.org/#is-local
- * @param {URL} url
- */
-function urlIsLocal (url) {
-  assert('protocol' in url) // ensure it's a url object
-
-  const protocol = url.protocol
-
-  return protocol === 'about:' || protocol === 'blob:' || protocol === 'data:'
-}
-
-/**
- * @param {string|URL} url
- * @returns {boolean}
- */
-function urlHasHttpsScheme (url) {
-  return (
-    (
-      typeof url === 'string' &&
-      url[5] === ':' &&
-      url[0] === 'h' &&
-      url[1] === 't' &&
-      url[2] === 't' &&
-      url[3] === 'p' &&
-      url[4] === 's'
-    ) ||
-    url.protocol === 'https:'
-  )
-}
-
-/**
- * @see https://fetch.spec.whatwg.org/#http-scheme
- * @param {URL} url
- */
-function urlIsHttpHttpsScheme (url) {
-  assert('protocol' in url) // ensure it's a url object
-
-  const protocol = url.protocol
-
-  return protocol === 'http:' || protocol === 'https:'
-}
-
-/**
- * @see https://fetch.spec.whatwg.org/#simple-range-header-value
- * @param {string} value
- * @param {boolean} allowWhitespace
- */
-function simpleRangeHeaderValue (value, allowWhitespace) {
-  // 1. Let data be the isomorphic decoding of value.
-  // Note: isomorphic decoding takes a sequence of bytes (ie. a Uint8Array) and turns it into a string,
-  // nothing more. We obviously don't need to do that if value is a string already.
-  const data = value
-
-  // 2. If data does not start with "bytes", then return failure.
-  if (!data.startsWith('bytes')) {
-    return 'failure'
-  }
-
-  // 3. Let position be a position variable for data, initially pointing at the 5th code point of data.
-  const position = { position: 5 }
-
-  // 4. If allowWhitespace is true, collect a sequence of code points that are HTTP tab or space,
-  //    from data given position.
-  if (allowWhitespace) {
-    collectASequenceOfCodePoints(
-      (char) => char === '\t' || char === ' ',
-      data,
-      position
-    )
-  }
-
-  // 5. If the code point at position within data is not U+003D (=), then return failure.
-  if (data.charCodeAt(position.position) !== 0x3D) {
-    return 'failure'
-  }
-
-  // 6. Advance position by 1.
-  position.position++
-
-  // 7. If allowWhitespace is true, collect a sequence of code points that are HTTP tab or space, from
-  //    data given position.
-  if (allowWhitespace) {
-    collectASequenceOfCodePoints(
-      (char) => char === '\t' || char === ' ',
-      data,
-      position
-    )
-  }
-
-  // 8. Let rangeStart be the result of collecting a sequence of code points that are ASCII digits,
-  //    from data given position.
-  const rangeStart = collectASequenceOfCodePoints(
-    (char) => {
-      const code = char.charCodeAt(0)
-
-      return code >= 0x30 && code <= 0x39
-    },
-    data,
-    position
-  )
-
-  // 9. Let rangeStartValue be rangeStart, interpreted as decimal number, if rangeStart is not the
-  //    empty string; otherwise null.
-  const rangeStartValue = rangeStart.length ? Number(rangeStart) : null
-
-  // 10. If allowWhitespace is true, collect a sequence of code points that are HTTP tab or space,
-  //     from data given position.
-  if (allowWhitespace) {
-    collectASequenceOfCodePoints(
-      (char) => char === '\t' || char === ' ',
-      data,
-      position
-    )
-  }
-
-  // 11. If the code point at position within data is not U+002D (-), then return failure.
-  if (data.charCodeAt(position.position) !== 0x2D) {
-    return 'failure'
-  }
-
-  // 12. Advance position by 1.
-  position.position++
-
-  // 13. If allowWhitespace is true, collect a sequence of code points that are HTTP tab
-  //     or space, from data given position.
-  // Note from Khafra: its the same step as in #8 again lol
-  if (allowWhitespace) {
-    collectASequenceOfCodePoints(
-      (char) => char === '\t' || char === ' ',
-      data,
-      position
-    )
-  }
-
-  // 14. Let rangeEnd be the result of collecting a sequence of code points that are
-  //     ASCII digits, from data given position.
-  // Note from Khafra: you wouldn't guess it, but this is also the same step as #8
-  const rangeEnd = collectASequenceOfCodePoints(
-    (char) => {
-      const code = char.charCodeAt(0)
-
-      return code >= 0x30 && code <= 0x39
-    },
-    data,
-    position
-  )
-
-  // 15. Let rangeEndValue be rangeEnd, interpreted as decimal number, if rangeEnd
-  //     is not the empty string; otherwise null.
-  // Note from Khafra: THE SAME STEP, AGAIN!!!
-  // Note: why interpret as a decimal if we only collect ascii digits?
-  const rangeEndValue = rangeEnd.length ? Number(rangeEnd) : null
-
-  // 16. If position is not past the end of data, then return failure.
-  if (position.position < data.length) {
-    return 'failure'
-  }
-
-  // 17. If rangeEndValue and rangeStartValue are null, then return failure.
-  if (rangeEndValue === null && rangeStartValue === null) {
-    return 'failure'
-  }
-
-  // 18. If rangeStartValue and rangeEndValue are numbers, and rangeStartValue is
-  //     greater than rangeEndValue, then return failure.
-  // Note: ... when can they not be numbers?
-  if (rangeStartValue > rangeEndValue) {
-    return 'failure'
-  }
-
-  // 19. Return (rangeStartValue, rangeEndValue).
-  return { rangeStartValue, rangeEndValue }
-}
-
-/**
- * @see https://fetch.spec.whatwg.org/#build-a-content-range
- * @param {number} rangeStart
- * @param {number} rangeEnd
- * @param {number} fullLength
- */
-function buildContentRange (rangeStart, rangeEnd, fullLength) {
-  // 1. Let contentRange be `bytes `.
-  let contentRange = 'bytes '
-
-  // 2. Append rangeStart, serialized and isomorphic encoded, to contentRange.
-  contentRange += isomorphicEncode(`${rangeStart}`)
-
-  // 3. Append 0x2D (-) to contentRange.
-  contentRange += '-'
-
-  // 4. Append rangeEnd, serialized and isomorphic encoded to contentRange.
-  contentRange += isomorphicEncode(`${rangeEnd}`)
-
-  // 5. Append 0x2F (/) to contentRange.
-  contentRange += '/'
-
-  // 6. Append fullLength, serialized and isomorphic encoded to contentRange.
-  contentRange += isomorphicEncode(`${fullLength}`)
-
-  // 7. Return contentRange.
-  return contentRange
-}
-
-// A Stream, which pipes the response to zlib.createInflate() or
-// zlib.createInflateRaw() depending on the first byte of the Buffer.
-// If the lower byte of the first byte is 0x08, then the stream is
-// interpreted as a zlib stream, otherwise it's interpreted as a
-// raw deflate stream.
-class InflateStream extends Transform {
-  #zlibOptions
-
-  /** @param {zlib.ZlibOptions} [zlibOptions] */
-  constructor (zlibOptions) {
-    super()
-    this.#zlibOptions = zlibOptions
-  }
-
-  _transform (chunk, encoding, callback) {
-    if (!this._inflateStream) {
-      if (chunk.length === 0) {
-        callback()
-        return
-      }
-      this._inflateStream = (chunk[0] & 0x0F) === 0x08
-        ? zlib.createInflate(this.#zlibOptions)
-        : zlib.createInflateRaw(this.#zlibOptions)
-
-      this._inflateStream.on('data', this.push.bind(this))
-      this._inflateStream.on('end', () => this.push(null))
-      this._inflateStream.on('error', (err) => this.destroy(err))
-    }
-
-    this._inflateStream.write(chunk, encoding, callback)
-  }
-
-  _final (callback) {
-    if (this._inflateStream) {
-      this._inflateStream.end()
-      this._inflateStream = null
-    }
-    callback()
-  }
-}
-
-/**
- * @param {zlib.ZlibOptions} [zlibOptions]
- * @returns {InflateStream}
- */
-function createInflate (zlibOptions) {
-  return new InflateStream(zlibOptions)
-}
-
-/**
- * @see https://fetch.spec.whatwg.org/#concept-header-extract-mime-type
- * @param {import('./headers').HeadersList} headers
- */
-function extractMimeType (headers) {
-  // 1. Let charset be null.
-  let charset = null
-
-  // 2. Let essence be null.
-  let essence = null
-
-  // 3. Let mimeType be null.
-  let mimeType = null
-
-  // 4. Let values be the result of getting, decoding, and splitting `Content-Type` from headers.
-  const values = getDecodeSplit('content-type', headers)
-
-  // 5. If values is null, then return failure.
-  if (values === null) {
-    return 'failure'
-  }
-
-  // 6. For each value of values:
-  for (const value of values) {
-    // 6.1. Let temporaryMimeType be the result of parsing value.
-    const temporaryMimeType = parseMIMEType(value)
-
-    // 6.2. If temporaryMimeType is failure or its essence is "*/*", then continue.
-    if (temporaryMimeType === 'failure' || temporaryMimeType.essence === '*/*') {
-      continue
-    }
-
-    // 6.3. Set mimeType to temporaryMimeType.
-    mimeType = temporaryMimeType
-
-    // 6.4. If mimeType’s essence is not essence, then:
-    if (mimeType.essence !== essence) {
-      // 6.4.1. Set charset to null.
-      charset = null
-
-      // 6.4.2. If mimeType’s parameters["charset"] exists, then set charset to
-      //        mimeType’s parameters["charset"].
-      if (mimeType.parameters.has('charset')) {
-        charset = mimeType.parameters.get('charset')
-      }
-
-      // 6.4.3. Set essence to mimeType’s essence.
-      essence = mimeType.essence
-    } else if (!mimeType.parameters.has('charset') && charset !== null) {
-      // 6.5. Otherwise, if mimeType’s parameters["charset"] does not exist, and
-      //      charset is non-null, set mimeType’s parameters["charset"] to charset.
-      mimeType.parameters.set('charset', charset)
-    }
-  }
-
-  // 7. If mimeType is null, then return failure.
-  if (mimeType == null) {
-    return 'failure'
-  }
-
-  // 8. Return mimeType.
-  return mimeType
-}
-
-/**
- * @see https://fetch.spec.whatwg.org/#header-value-get-decode-and-split
- * @param {string|null} value
- */
-function gettingDecodingSplitting (value) {
-  // 1. Let input be the result of isomorphic decoding value.
-  const input = value
-
-  // 2. Let position be a position variable for input, initially pointing at the start of input.
-  const position = { position: 0 }
-
-  // 3. Let values be a list of strings, initially empty.
-  const values = []
-
-  // 4. Let temporaryValue be the empty string.
-  let temporaryValue = ''
-
-  // 5. While position is not past the end of input:
-  while (position.position < input.length) {
-    // 5.1. Append the result of collecting a sequence of code points that are not U+0022 (")
-    //      or U+002C (,) from input, given position, to temporaryValue.
-    temporaryValue += collectASequenceOfCodePoints(
-      (char) => char !== '"' && char !== ',',
-      input,
-      position
-    )
-
-    // 5.2. If position is not past the end of input, then:
-    if (position.position < input.length) {
-      // 5.2.1. If the code point at position within input is U+0022 ("), then:
-      if (input.charCodeAt(position.position) === 0x22) {
-        // 5.2.1.1. Append the result of collecting an HTTP quoted string from input, given position, to temporaryValue.
-        temporaryValue += collectAnHTTPQuotedString(
-          input,
-          position
-        )
-
-        // 5.2.1.2. If position is not past the end of input, then continue.
-        if (position.position < input.length) {
-          continue
-        }
-      } else {
-        // 5.2.2. Otherwise:
-
-        // 5.2.2.1. Assert: the code point at position within input is U+002C (,).
-        assert(input.charCodeAt(position.position) === 0x2C)
-
-        // 5.2.2.2. Advance position by 1.
-        position.position++
-      }
-    }
-
-    // 5.3. Remove all HTTP tab or space from the start and end of temporaryValue.
-    temporaryValue = removeChars(temporaryValue, true, true, (char) => char === 0x9 || char === 0x20)
-
-    // 5.4. Append temporaryValue to values.
-    values.push(temporaryValue)
-
-    // 5.6. Set temporaryValue to the empty string.
-    temporaryValue = ''
-  }
-
-  // 6. Return values.
-  return values
-}
-
-/**
- * @see https://fetch.spec.whatwg.org/#concept-header-list-get-decode-split
- * @param {string} name lowercase header name
- * @param {import('./headers').HeadersList} list
- */
-function getDecodeSplit (name, list) {
-  // 1. Let value be the result of getting name from list.
-  const value = list.get(name, true)
-
-  // 2. If value is null, then return null.
-  if (value === null) {
-    return null
-  }
-
-  // 3. Return the result of getting, decoding, and splitting value.
-  return gettingDecodingSplitting(value)
-}
-
-const textDecoder = new TextDecoder()
-
-/**
- * @see https://encoding.spec.whatwg.org/#utf-8-decode
- * @param {Buffer} buffer
- */
-function utf8DecodeBytes (buffer) {
-  if (buffer.length === 0) {
-    return ''
-  }
-
-  // 1. Let buffer be the result of peeking three bytes from
-  //    ioQueue, converted to a byte sequence.
-
-  // 2. If buffer is 0xEF 0xBB 0xBF, then read three
-  //    bytes from ioQueue. (Do nothing with those bytes.)
-  if (buffer[0] === 0xEF && buffer[1] === 0xBB && buffer[2] === 0xBF) {
-    buffer = buffer.subarray(3)
-  }
-
-  // 3. Process a queue with an instance of UTF-8’s
-  //    decoder, ioQueue, output, and "replacement".
-  const output = textDecoder.decode(buffer)
-
-  // 4. Return output.
-  return output
-}
-
-class EnvironmentSettingsObjectBase {
-  get baseUrl () {
-    return getGlobalOrigin()
-  }
-
-  get origin () {
-    return this.baseUrl?.origin
-  }
-
-  policyContainer = makePolicyContainer()
-}
-
-class EnvironmentSettingsObject {
-  settingsObject = new EnvironmentSettingsObjectBase()
-}
-
-const environmentSettingsObject = new EnvironmentSettingsObject()
-
-module.exports = {
-  isAborted,
-  isCancelled,
-  isValidEncodedURL,
-  createDeferredPromise,
-  ReadableStreamFrom,
-  tryUpgradeRequestToAPotentiallyTrustworthyURL,
-  clampAndCoarsenConnectionTimingInfo,
-  coarsenedSharedCurrentTime,
-  determineRequestsReferrer,
-  makePolicyContainer,
-  clonePolicyContainer,
-  appendFetchMetadata,
-  appendRequestOriginHeader,
-  TAOCheck,
-  corsCheck,
-  crossOriginResourcePolicyCheck,
-  createOpaqueTimingInfo,
-  setRequestReferrerPolicyOnRedirect,
-  isValidHTTPToken,
-  requestBadPort,
-  requestCurrentURL,
-  responseURL,
-  responseLocationURL,
-  isBlobLike,
-  isURLPotentiallyTrustworthy,
-  isValidReasonPhrase,
-  sameOrigin,
-  normalizeMethod,
-  serializeJavascriptValueToJSONString,
-  iteratorMixin,
-  createIterator,
-  isValidHeaderName,
-  isValidHeaderValue,
-  isErrorLike,
-  fullyReadBody,
-  bytesMatch,
-  isReadableStreamLike,
-  readableStreamClose,
-  isomorphicEncode,
-  urlIsLocal,
-  urlHasHttpsScheme,
-  urlIsHttpHttpsScheme,
-  readAllBytes,
-  simpleRangeHeaderValue,
-  buildContentRange,
-  parseMetadata,
-  createInflate,
-  extractMimeType,
-  getDecodeSplit,
-  utf8DecodeBytes,
-  environmentSettingsObject
-}