Simplifying imports and removing legacy MIME types for JS

Author: aaronshim

package.json

@@ -174,7 +174,6 @@
     "ora": "5.4.1",
     "pacote": "20.0.0",
     "parse5-html-rewriting-stream": "7.0.0",
-    "parse5-sax-parser": "7.0.0",
     "picomatch": "4.0.2",
     "piscina": "4.7.0",
     "postcss": "8.4.47",

packages/angular/build/BUILD.bazel

@@ -89,7 +89,6 @@ ts_library(
         "@npm//magic-string",
         "@npm//mrmime",
         "@npm//parse5-html-rewriting-stream",
-        "@npm//parse5-sax-parser",
         "@npm//picomatch",
         "@npm//piscina",
         "@npm//postcss",

packages/angular/build/src/utils/index-file/auto-csp.ts

@@ -6,39 +6,14 @@
  * found in the LICENSE file at https://angular.dev/license
  */
 
-import { RewritingStream } from 'parse5-html-rewriting-stream';
-import { StartTag } from 'parse5-sax-parser';
-import { htmlRewritingStream } from './html-rewriting-stream';
+import { htmlRewritingStream, StartTag } from './html-rewriting-stream';
 import * as crypto from 'node:crypto';
 
 /**
  * The hash function to use for hash directives to use in the CSP.
  */
 const HASH_FUNCTION = 'sha256';
 
-/**
- * Appropriate and legacy JS MIME types from
- * https://developer.mozilla.org/en-US/docs/Web/HTTP/MIME_types#textjavascript
- */
-const JS_MIME_TYPES = new Set([
-  'text/javascript',
-  'application/javascript',
-  'application/ecmascript',
-  'application/x-ecmascript',
-  'application/x-javascript',
-  'text/ecmascript',
-  'text/javascript1.0',
-  'text/javascript1.1',
-  'text/javascript1.2',
-  'text/javascript1.3',
-  'text/javascript1.4',
-  'text/javascript1.5',
-  'text/jscript',
-  'text/livescript',
-  'text/x-ecmascript',
-  'text/x-javascript',
-]);
-
 /**
  * Store the appropriate attributes of a sourced script tag to generate the loader script.
  */
@@ -67,7 +42,7 @@ function getScriptAttributeValue(tag: StartTag, attrName: string): string | unde
  * @returns whether the string is a MIME type that is associated with JavaScript
  */
 function isJavascriptMimeType(mimeType: string): boolean {
-  return JS_MIME_TYPES.has(mimeType.split(';')[0]);
+  return mimeType.split(';')[0] === 'text/javascript';
 }
 
 /**

yarn.lock

@@ -752,7 +752,6 @@ __metadata:
     ora: "npm:5.4.1"
     pacote: "npm:20.0.0"
     parse5-html-rewriting-stream: "npm:7.0.0"
-    parse5-sax-parser: "npm:7.0.0"
     picomatch: "npm:4.0.2"
     piscina: "npm:4.7.0"
     postcss: "npm:8.4.47"
@@ -14301,7 +14300,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"parse5-sax-parser@npm:7.0.0, parse5-sax-parser@npm:^7.0.0":
+"parse5-sax-parser@npm:^7.0.0":
   version: 7.0.0
   resolution: "parse5-sax-parser@npm:7.0.0"
   dependencies: