Bug 460706 - Handle misplaced ContinueInterruptedParsing calls during synchronous XMLHttpRequest. r+sr=sicking a=dveditz

git-svn-id: svn://10.0.0.236/trunk@256246 18797224-902f-48f8-a5cc-f745e15eee43

mozilla/parser/htmlparser/src/nsParser.cpp

@@ -1157,6 +1157,13 @@ nsParser::ContinueParsing()
 NS_IMETHODIMP
 nsParser::ContinueInterruptedParsing()
 {
+  // If there are scripts executing, then the content sink is jumping the gun
+  // (probably due to a synchronous XMLHttpRequest) and will re-enable us
+  // later, see bug 460706.
+  if (mScriptsExecuting) {
+    return NS_OK;
+  }
+
   // If the stream has already finished, there's a good chance
   // that we might start closing things down when the parser
   // is reenabled. To make sure that we're not deleted across