Bug 21792: Suppress MediaError.message when privacy.resistFingerprint…

…ing = true
arthuredelstein · May 2, 2017 · 4de3452842e270be17ea9cc977a0535f23d86a3d · 4de3452
1 parent 59cba8d
commit 4de3452842e270be17ea9cc977a0535f23d86a3d
Showing with 7 additions and 1 deletion.

+7 −1 dom/html/MediaError.cpp
diff --git a/dom/html/MediaError.cpp b/dom/html/MediaError.cpp
@@ -7,6 +7,7 @@
 #include "mozilla/dom/MediaError.h"
 #include "nsDOMClassInfoID.h"
 #include "mozilla/dom/MediaErrorBinding.h"
+#include "nsContentUtils.h"
 
 namespace mozilla {
 namespace dom {
@@ -31,7 +32,12 @@ MediaError::MediaError(HTMLMediaElement* aParent, uint16_t aCode,
 void
 MediaError::GetMessage(nsAString& aResult) const
 {
-  CopyUTF8toUTF16(mMessage, aResult);
+  if (nsContentUtils::IsCallerChrome() ||
+      !nsContentUtils::ShouldResistFingerprinting()) {
+    CopyUTF8toUTF16(mMessage, aResult);
+  } else {
+    aResult.Truncate();
+  }
 }
 
 JSObject*