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<!DOCTYPE html>
<html>
<!--
Repeated reload an iframe. When iframe's script is loaded from the bytecode
cache, dynamic module import should still resolve modules based on the
script's URL.
-->
<head>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
<script>
const iframeId = "test_iframe";
var checkResult = null;
async function startTest() {
SimpleTest.waitForExplicitFinish();
// Setting dom.expose_test_interfaces pref causes the
// nsScriptLoadRequest to fire event on script tags, with information
// about its internal state. The ScriptLoader source send events to
// trace these and resolve a promise with the path taken by the
// script loader.
//
// Setting dom.script_loader.bytecode_cache.strategy to -1 causes the
// nsScriptLoadRequest to force all the conditions necessary to make a
// script be saved as bytecode in the alternate data storage provided
// by the channel (necko cache).
await SpecialPowers.pushPrefEnv({
set: [
['dom.script_loader.bytecode_cache.enabled', true],
['dom.expose_test_interfaces', true],
["dom.script_loader.bytecode_cache.strategy", -1]
]});
for (let i = 0; i < 3; i++) {
let iframe = document.getElementById(iframeId);
if (iframe) {
document.body.removeChild(iframe);
}
iframe = document.createElement("iframe");
document.body.appendChild(iframe);
iframe.id = iframeId;
let iwin = iframe.contentWindow;
let eventPromise = new Promise(resolve => {
// Both regular script and imported module scripts are encoded/decoded
// Wait for 2 encode/load events to be fired.
let count = 0;
if (i == 0) {
iwin.addEventListener("scriptloader_bytecode_saved", event => {
count++;
ok(true, "Bytecode encoding succeeded");
if (count == 2) {
resolve();
}
});
} else {
iwin.addEventListener("scriptloader_load_bytecode", event => {
count++;
ok(true, "Script loaded from bytecode");
if (count == 2) {
resolve();
}
});
}
iwin.addEventListener("scriptloader_bytecode_failed", () => {
ok(false, "Bytecode encoding failed");
SimpleTest.finish();
});
});
let resultPromise = new Promise(resolve => {
checkResult = resolve;
});
iframe.src = "bug1656248_frame.html";
let [_, result] = await Promise.all([eventPromise, resultPromise]);
is(result, 42, `Module was loaded successfully (${i})`);
}
SimpleTest.finish();
}
</script>
</head>
<body onload="startTest()"></body>
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