37 lines
932 B
HTML
37 lines
932 B
HTML
<!DOCTYPE html>
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<html>
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<head>
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<title>Overriding postMessage and dispatchEvent bindings</title>
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<script type="application/javascript">
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window.postMessage = function (evt) {
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window.parent.postMessage("FAIL overridden postMessage called", "*");
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};
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var count = 0;
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function receiveMessage(evt) {
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count++;
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if (count == 2) {
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window.dispatchEvent = function(evt) {
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window.parent.postMessage("FAIL", "*");
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throw "dispatchEvent threw";
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};
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}
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window.parent.postMessage(evt.data, "http://mochi.test:8888");
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}
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function setup() {
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var target = document.getElementById("location");
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target.textContent = location.hostname + ":" + (location.port || 80);
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}
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window.addEventListener("message", receiveMessage);
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window.addEventListener("load", setup);
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</script>
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</head>
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<body>
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<h1 id="location">No location!</h1>
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</body>
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</html>
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