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<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=1222633
-->
<head>
<title>Test for Bug 1222633</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1222633">Mozilla Bug 1222633</a>
<p id="display"></p>
<div id="content" style="display: none"></div>
<script class="testbody" type="text/javascript">
/** Test for Bug 1222633 **/
// Test changing as attribute from an empty value to "foo" to "image". The empty value and "foo" will
// not trigger any event and "image" should trigger an load event.
function testPreloadEventAsAttributeChange(url) {
return new Promise((resolve) => {
var link = document.createElement("LINK");
link.setAttribute("rel", "preload");
link.setAttribute("href", url);
link.addEventListener("load", () => {
ok(link.as == "image", "Only image will trigger a load event");
link.remove();
resolve();
});
link.addEventListener("error", () => {
ok(false, "We should not get an error event.");
});
document.head.appendChild(link);
link.setAttribute("as", "foo");
link.setAttribute("as", "image");
});
}
function testPreloadEventAttributeChange(url, attr, invalidValue, validValue) {
return new Promise((resolve) => {
var count = 0;
var link = document.createElement("LINK");
link.setAttribute("rel", "preload");
link.setAttribute("href", url);
link.setAttribute("as", "image");
link.setAttribute(attr, invalidValue);
let firedLoad = false;
link.addEventListener("load", () => {
ok(!firedLoad, "expecting first load event for " + url);
firedLoad = true;
link.remove();
resolve();
});
link.addEventListener("error", () => {
ok(false, "shouldn't fire error events");
});
document.head.appendChild(link);
SimpleTest.executeSoon(function() {
ok(!firedLoad, "Invalid value shouldn't fire load event");
link.setAttribute(attr, validValue);
})
});
}
function testPreloadEventSetCrossOrigin(url) {
return new Promise((resolve) => {
var link = document.createElement("LINK");
link.setAttribute("rel", "preload");
link.setAttribute("href", url);
link.setAttribute("as", "fetch");
count = 0;
link.addEventListener("load", () => {
count++;
if ((count == 1) || (count == 3) || (count == 5)) {
ok(true, "expecting " + count + ". load event for " + url);
} else {
ok(false, "expecting " + count + ". event for " + url);
}
if ((count == 1) || (count == 3)) {
link.setAttribute("crossorigin", "");
} else {
link.remove();
resolve();
}
});
link.addEventListener("error", () => {
count++;
if ((count == 2) || (count == 4)) {
ok(true, "expecting " + count + ". error event for " + url);
} else {
ok(false, "expecting " + count + ". error event for " + url);
}
link.removeAttribute("crossorigin");
});
document.head.appendChild(link);
});
}
const IMAGE_PATH = window.location.pathname.replace(/[^/]+$/, "file_mozfiledataurl_img.jpg");
const SJS_PATH = window.location.pathname.replace(/[^/]+$/, "file_bug1268962.sjs");
const SAME_ORIGIN = "http://mochi.test:8888";
const CROSS_ORIGIN = "http://example.com";
SimpleTest.waitForExplicitFinish();
// Test changing as parameter from a wrong to a correct one.
testPreloadEventAsAttributeChange(SAME_ORIGIN + IMAGE_PATH)
// Test changing type parameter from a wrong to a correct one for given as parameter.
.then(() => testPreloadEventAttributeChange(SAME_ORIGIN + IMAGE_PATH, "type", "text/vtt", "image/png"))
// Test changing media parameter from a wrong to a correct one.
.then(() => testPreloadEventAttributeChange(SAME_ORIGIN + IMAGE_PATH, "media", "foo", "all"))
// Test changing crossorigin parameter.
.then(() => testPreloadEventSetCrossOrigin(CROSS_ORIGIN + SJS_PATH + "?statusCode=404&cacheControl=max-age%3D120&allowOrigin=*"))
.catch((err) => ok(false, "promise rejected: " + err))
.then(() => SimpleTest.finish());
</script>
</body>
</html>
|
