revert

Author: Uzlopak

lib/web/fetch/constants.js

@@ -84,17 +84,6 @@ const requestDuplex = /** @type {const} */ ([
   'half'
 ])
 
-/**
- * A local scheme is "about", "blob", or "data".
- *
- * @see https://fetch.spec.whatwg.org/#local-scheme
- */
-const urlLocalScheme = /** @type {const} */ ([
-  'about:',
-  'blob:',
-  'data:'
-])
-
 /**
  * @see http://fetch.spec.whatwg.org/#forbidden-method
  */
@@ -138,6 +127,5 @@ module.exports = {
   corsSafeListedMethodsSet,
   safeMethodsSet,
   forbiddenMethodsSet,
-  referrerPolicyTokens: referrerPolicyTokensSet,
-  urlLocalScheme
+  referrerPolicyTokens: referrerPolicyTokensSet
 }

lib/web/fetch/util.js

@@ -2,7 +2,7 @@
 
 const { Transform } = require('node:stream')
 const zlib = require('node:zlib')
-const { redirectStatusSet, referrerPolicyTokens, badPortsSet, urlLocalScheme } = require('./constants')
+const { redirectStatusSet, referrerPolicyTokens, badPortsSet } = require('./constants')
 const { getGlobalOrigin } = require('./global')
 const { collectASequenceOfCodePoints, collectAnHTTPQuotedString, removeChars, parseMIMEType } = require('./data-url')
 const { performance } = require('node:perf_hooks')
@@ -1286,7 +1286,11 @@ async function readAllBytes (reader, successSteps, failureSteps) {
 function urlIsLocal (url) {
   assert('protocol' in url) // ensure it's a url object
 
-  return urlLocalScheme.includes(url.protocol)
+  const protocol = url.protocol
+
+  // A URL is local if its scheme is a local scheme.
+  // A local scheme is "about", "blob", or "data".
+  return protocol === 'about:' || protocol === 'blob:' || protocol === 'data:'
 }
 
 /**