diff options
| -rw-r--r-- | dom/base/ResizeObserverController.cpp | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/dom/base/ResizeObserverController.cpp b/dom/base/ResizeObserverController.cpp index 924bba10d..349cb66ba 100644 --- a/dom/base/ResizeObserverController.cpp +++ b/dom/base/ResizeObserverController.cpp @@ -59,6 +59,12 @@ ResizeObserverNotificationHelper::Register() void ResizeObserverNotificationHelper::Unregister() { + if (!mOwner) { + // We've outlived our owner, so there's nothing registered anymore. + mRegistered = false; + return; + } + if (!mRegistered) { return; } |