Bug 1440827 - Cancel preloaded requests if we decide not to use them r=baku

2018-03-29 17:11:41 +01:00 · 2018-03-29 17:11:41 +01:00 · 1ce8789ad0
--- a/dom/html/crashtests/1440827.html
+++ b/dom/html/crashtests/1440827.html
@ -0,0 +1,6 @@
+<html>
+<head>
+<meta charset="UTF-8">
+>
+<meta content='referrer no-referrer;manifest-src self http:' http-equiv='Content-Security-Policy'>
+<script src='http://zzzzzz.z'></script>
--- a/dom/script/ScriptLoader.cpp
+++ b/dom/script/ScriptLoader.cpp
@ -1623,6 +1623,7 @@ ScriptLoader::LookupPreloadRequest(nsIScriptElement* aElement,
      mDocument->GetReferrerPolicy() != request->mReferrerPolicy ||
      aScriptKind != request->mKind) {
    // Drop the preload.
+    request->Cancel();
    AccumulateCategorical(LABELS_DOM_SCRIPT_PRELOAD_RESULT::RequestMismatch);
    return nullptr;
  }