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Bug 1825745 - Fix intermittent failure of testing/web-platform/tests/html/browsers/browsing-the-web/navigating-across-documents/replace-before-load/form-requestsubmit.html. r=smaug

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Differential Revision: https://phabricator.services.mozilla.com/D181792
This commit is contained in:
Peter Van der Beken
2023-06-22 18:32:21 +00:00
parent 8422291d23
commit 06b0782ce5
1 changed files with 13 additions and 1 deletions
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14
dom/html/HTMLFormElement.cpp
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@@ -246,11 +246,23 @@ void HTMLFormElement::MaybeSubmit(Element* aSubmitter) {
return;
}
RefPtr<PresShell> presShell = doc->GetPresShell();
if (!presShell) {
// We need the nsPresContext for dispatching the submit event. In some
// rare cases we need to flush notifications to force creation of the
// nsPresContext here (for example when a script calls form.requestSubmit()
// from script early during page load). We only flush the notifications
// if the PresShell hasn't been created yet, to limit the performance
// impact.
doc->FlushPendingNotifications(FlushType::EnsurePresShellInitAndFrames);
presShell = doc->GetPresShell();
}
// If |PresShell::Destroy| has been called due to handling the event the pres
// context will return a null pres shell. See bug 125624. Using presShell to
// dispatch the event. It makes sure that event is not handled if the window
// is being destroyed.
if (RefPtr<PresShell> presShell = doc->GetPresShell()) {
if (presShell) {
SubmitEventInit init;
init.mBubbles = true;
init.mCancelable = true;