37 lines
1.2 KiB
HTML
37 lines
1.2 KiB
HTML
<!DOCTYPE html>
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<title>Helper IFrame</title>
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<script>
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'use strict';
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async function onLoad() {
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// Nested Step 5: wpt/web-locks/partitioned-web-locks.tentative.https.html
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// Load the innermost child iframe and its content.
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const params = new URLSearchParams(self.location.search);
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const frame = document.createElement('iframe');
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frame.src = params.get('target');
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document.body.appendChild(frame);
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self.addEventListener('message', evt => {
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// Nested Step 6: wpt/web-locks/partitioned-web-locks.tentative.https.html
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// Pass any operations request messages to the
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// innermost child iframe.
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if (evt.data.op){
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// Ensure that the iframe has loaded before passing
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// on the message.
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frame.addEventListener('load', function(){
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frame.contentWindow.postMessage(evt.data, '*');
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});
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}
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// Nested Step 8: wpt/web-locks/partitioned-web-locks.tentative.https.html
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else {
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// All other messages, should be sent back to the
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// top-level site.
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if (self.opener)
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self.opener.postMessage(evt.data, '*');
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else
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self.top.postMessage(evt.data, '*');
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}
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});
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}
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self.addEventListener('load', onLoad);
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</script>
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