incumbent.https.html

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<!DOCTYPE html>

<title>Incumbent page used as a test helper</title>

<iframe src="../current/current.https.html" id="c"></iframe>

<iframe src="../relevant/relevant.https.html" id="r"></iframe>

<script>

'use strict';

const current = document.querySelector('#c').contentWindow;

const relevant = document.querySelector('#r').contentWindow;

window.testRegister = options => {

    return current.navigator.serviceWorker.register.call(relevant.navigator.serviceWorker, 'test-sw.js', options);

};

window.testGetRegistration = () => {

    return current.navigator.serviceWorker.getRegistration.call(relevant.navigator.serviceWorker, 'test-sw.js');

};

</script>