Bug 1736243 - Make SVGObserverUtils::GetAndObserveTextPathsPath not o…

…bserve on continuations. r=longsonr Differential Revision: https://phabricator.services.mozilla.com/D139485
mozilla · Feb 25, 2022 · 9bf0b6e · 9bf0b6e
1 parent 1d940ce
commit 9bf0b6e
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/layout/svg/SVGObserverUtils.cpp b/layout/svg/SVGObserverUtils.cpp
@@ -1399,6 +1399,10 @@ SVGObserverUtils::ReferenceState SVGObserverUtils::GetAndObserveMasks(
 
 SVGGeometryElement* SVGObserverUtils::GetAndObserveTextPathsPath(
     nsIFrame* aTextPathFrame) {
+  // Continuations can come and go during reflow, and we don't need to observe
+  // the referenced element more than once for a given node.
+  aTextPathFrame = aTextPathFrame->FirstContinuation();
+
   SVGTextPathObserver* property =
       aTextPathFrame->GetProperty(HrefAsTextPathProperty());