Fix bug 325991 -- spinning event queues requires more care. r=jst, sr=shaver

git-svn-id: svn://10.0.0.236/trunk@189362 18797224-902f-48f8-a5cc-f745e15eee43

mozilla/caps/src/nsScriptSecurityManager.cpp

@@ -1558,6 +1558,13 @@ nsScriptSecurityManager::CanExecuteScripts(JSContext* cx,
     //-- See if the current window allows JS execution
     nsIScriptContext *scriptContext = GetScriptContext(cx);
     if (!scriptContext) return NS_ERROR_FAILURE;
+
+    if (!scriptContext->GetScriptsEnabled()) {
+        // No scripting on this context, folks
+        *result = PR_FALSE;
+        return NS_OK;
+    }
+    
     nsIScriptGlobalObject *sgo = scriptContext->GetGlobalObject();
 
     if (!sgo) {