diff --git a/lib/ModuleFilenameHelpers.js b/lib/ModuleFilenameHelpers.js
index afe3d345338..738bc442a2c 100644
--- a/lib/ModuleFilenameHelpers.js
+++ b/lib/ModuleFilenameHelpers.js
@@ -87,28 +87,6 @@ const getHash =
 		return digest.slice(0, 4);
 	};
 
-/**
- * Returns a function that returns the string with the token replaced with the replacement
- * @param {string|RegExp} test A regular expression string or Regular Expression object
- * @returns	{RegExp} A regular expression object
- * @example
- * ```js
- * const test = asRegExp("test");
- * test.test("test"); // true
- *
- * const test2 = asRegExp(/test/);
- * test2.test("test"); // true
- * ```
- */
-const asRegExp = test => {
-	if (typeof test === "string") {
-		// Escape special characters in the string to prevent them from being interpreted as special characters in a regular expression. Do this by
-		// adding a backslash before each special character
-		test = new RegExp(`^${test.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&")}`);
-	}
-	return test;
-};
-
 /**
  * @template T
  * Returns a lazy object. The object is lazy in the sense that the properties are
@@ -335,15 +313,19 @@ ModuleFilenameHelpers.replaceDuplicates = (array, fn, comparator) => {
  * ModuleFilenameHelpers.matchPart("foo.js", [/^baz/, /^bar/]); // false
  * ```
  */
-ModuleFilenameHelpers.matchPart = (str, test) => {
+const matchPart = (str, test) => {
 	if (!test) return true;
-
 	if (Array.isArray(test)) {
-		return test.map(asRegExp).some(regExp => regExp.test(str));
+		return test.some(test => matchPart(str, test));
 	}
-	return asRegExp(test).test(str);
+	if (typeof test === "string") {
+		return str.startsWith(test);
+	}
+	return test.test(str);
 };
 
+ModuleFilenameHelpers.matchPart = matchPart;
+
 /**
  * Tests if a string matches a match object. The match object can have the following properties:
  * - `test`: a RegExp or an array of RegExp
diff --git a/lib/wasm/EnableWasmLoadingPlugin.js b/lib/wasm/EnableWasmLoadingPlugin.js
index 250dd0a2d71..4d4dace131b 100644
--- a/lib/wasm/EnableWasmLoadingPlugin.js
+++ b/lib/wasm/EnableWasmLoadingPlugin.js
@@ -99,7 +99,7 @@ class EnableWasmLoadingPlugin {
 						new ReadFileCompileWasmPlugin({
 							mangleImports: compiler.options.optimization.mangleWasmImports,
 							import:
-								compiler.options.output.environment.module &&
+								compiler.options.output.module &&
 								compiler.options.output.environment.dynamicImport
 						}).apply(compiler);
 					}
@@ -108,7 +108,7 @@ class EnableWasmLoadingPlugin {
 						const ReadFileCompileAsyncWasmPlugin = require("../node/ReadFileCompileAsyncWasmPlugin");
 						new ReadFileCompileAsyncWasmPlugin({
 							import:
-								compiler.options.output.environment.module &&
+								compiler.options.output.module &&
 								compiler.options.output.environment.dynamicImport
 						}).apply(compiler);
 					}
diff --git a/test/helpers/supportsBlob.js b/test/helpers/supportsBlob.js
index 4131935515a..8f6c80fb0ff 100644
--- a/test/helpers/supportsBlob.js
+++ b/test/helpers/supportsBlob.js
@@ -1,4 +1,4 @@
-module.exports = function supportsWebAssembly() {
+module.exports = function supportsBlob() {
 	try {
 		return typeof Blob !== "undefined";
 	} catch (_err) {
diff --git a/test/helpers/supportsResponse.js b/test/helpers/supportsResponse.js
index bda3699eb85..0cc0bc2a328 100644
--- a/test/helpers/supportsResponse.js
+++ b/test/helpers/supportsResponse.js
@@ -1,4 +1,4 @@
-module.exports = function supportsWebAssembly() {
+module.exports = function supportsResponse() {
 	try {
 		// eslint-disable-next-line n/no-unsupported-features/node-builtins
 		return typeof Response !== "undefined";