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<!DOCTYPE HTML>
<meta charset="utf-8">
<title>Test for bug 1730284 (throttling of same-origin iframes)</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" href="/tests/SimpleTest/test.css">
<style>
iframe {
width: 10px;
height: 10px;
}
.display-none {
display: none;
}
.vis-hidden {
visibility: hidden
}
.transparent {
opacity: 0;
}
.zero-size {
width: 0;
height: 0;
border: 0;
}
.offscreen {
position: absolute;
top: 500%;
}
.scroller {
height: 100px;
overflow: auto;
}
.scroller-padding {
height: 500px;
}
</style>
<iframe class="visible"></iframe>
<iframe class="display-none" data-throttled-expected></iframe>
<iframe class="vis-hidden" data-throttled-expected></iframe>
<iframe class="transparent"></iframe>
<iframe class="zero-size"></iframe>
<div class="scroller">
<div class="scroller-padding"></div>
<iframe class="scrolled-out-of-view" data-throttled-expected></iframe>
</div>
<iframe class="offscreen" data-throttled-expected></iframe>
<iframe class="offscreen zero-size" data-throttled-expected></iframe>
<iframe class="offscreen vis-hidden" data-throttled-expected></iframe>
<iframe class="offscreen transparent" data-throttled-expected></iframe>
<script>
async function assertThrottled(win, shouldThrottle, msg) {
if (isXOrigin) {
// In XOrigin mode we need to depend as well on the main process having
// painted the cross-origin iframe at least once for coordinates to be
// correct.
await SimpleTest.promiseWaitForCondition(() => {
return SpecialPowers.getDOMWindowUtils(win).effectivelyThrottlesFrameRequests == shouldThrottle;
}, msg);
}
is(SpecialPowers.getDOMWindowUtils(win).effectivelyThrottlesFrameRequests, shouldThrottle, msg);
}
add_task(async function() {
await SimpleTest.promiseFocus(window);
await assertThrottled(window, false, "Should not be throttling main page");
for (let frame of document.querySelectorAll("iframe")) {
let shouldThrottle = frame.getAttribute("data-throttled-expected") !== null;
await assertThrottled(frame.contentWindow, shouldThrottle, frame.className);
}
});
</script>
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