Backed out changeset 6d4600975de9 (bug 1834049) for causing wpt failures in MediaStreamTrack-contentHint.html CLOSED TREE

2023-05-25 14:17:38 -04:00
parent 335463e095
commit bba28c5516
1 changed files with 5 additions and 0 deletions
--- a/dom/html/HTMLCanvasElement.cpp
+++ b/dom/html/HTMLCanvasElement.cpp
@@ -821,6 +821,11 @@ already_AddRefed<CanvasCaptureMediaStream> HTMLCanvasElement::CaptureStream(
    return nullptr;
  }

+  if (!mCurrentContext) {
+    aRv.Throw(NS_ERROR_NOT_INITIALIZED);
+    return nullptr;
+  }
+
  auto stream = MakeRefPtr<CanvasCaptureMediaStream>(window, this);

  nsCOMPtr<nsIPrincipal> principal = NodePrincipal();