tor-browser

commit c06884446e582d0a125cf5635bf03412c59060b9
parent dac591595425c22eb01fba713617f7b8f59164c1
Author: Daniel Minor <dminor@mozilla.com>
Date:   Fri, 12 Dec 2025 14:12:37 +0000

Bug 1994828 - Add wasm to mimetype check in ScriptResponseHeaderProcessor.cpp; r=dom-worker-reviewers,edenchuang

Differential Revision: https://phabricator.services.mozilla.com/D275508

Diffstat:
M
dom/workers/loader/ScriptResponseHeaderProcessor.cpp
 | 
15
++++++++++++---

1 file changed, 12 insertions(+), 3 deletions(-)
diff --git a/dom/workers/loader/ScriptResponseHeaderProcessor.cpp b/dom/workers/loader/ScriptResponseHeaderProcessor.cpp
@@ -6,6 +6,7 @@
 
 #include "ScriptResponseHeaderProcessor.h"
 
+#include "mozilla/StaticPrefs_javascript.h"
 #include "mozilla/Try.h"
 #include "mozilla/dom/WorkerRef.h"
 #include "mozilla/dom/WorkerScope.h"
@@ -47,9 +48,17 @@ nsresult ScriptResponseHeaderProcessor::EnsureExpectedModuleType(
   channel->GetContentType(mimeType);
   NS_ConvertUTF8toUTF16 typeString(mimeType);
 
-  if (mModuleType == JS::ModuleType::JavaScript &&
-      nsContentUtils::IsJavascriptMIMEType(typeString)) {
-    return NS_OK;
+  if (mModuleType == JS::ModuleType::JavaScriptOrWasm) {
+    if (nsContentUtils::IsJavascriptMIMEType(typeString)) {
+      return NS_OK;
+    }
+#ifdef NIGHTLY_BUILD
+    if (StaticPrefs::javascript_options_experimental_wasm_esm_integration()) {
+      if (nsContentUtils::HasWasmMimeTypeEssence(typeString)) {
+        return NS_OK;
+      }
+    }
+#endif
   }
 
   if (mModuleType == JS::ModuleType::JSON &&