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<!DOCTYPE html>
<meta charset="utf-8">
<title>HTML: window.open `features`: non-integer values for feature `top`</title>
<meta name=timeout content=long>
<link rel="help" href="https://html.spec.whatwg.org/multipage/#apis-for-creating-and-navigating-browsing-contexts-by-name">
<!-- user agents are not required to support open features other than `noopener`
and on some platforms position and size features don't make sense -->
<meta name="flags" content="may" />
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/common/PrefixedPostMessage.js"></script>
<script>
var windowURL = 'resources/message-opener.html';
var featuresPrefix = `width=401,height=204,left=0,`;
setup (() => {
// Before running tests, open a window using features that mimic
// what would happen if the feature tested here were set to 0
// for comparison later.
var featureString = `${featuresPrefix}top=0`;
var prefixedMessage = new PrefixedMessageTest();
prefixedMessage.onMessage((data, e) => {
e.source.close();
runWindowTests(data);
});
var win = window.open(prefixedMessage.url(windowURL), '', featureString);
});
function runWindowTests (baselineDimensions) {
// When code point in first position is not an ASCII digit, "+" or "-",
// that's an error and the value becomes 0
[ 'top=/104',
'top=_104',
'top=L104'
].forEach(feature => {
async_test(t => {
var prefixedMessage = new PrefixedMessageTest();
var featureString = `${featuresPrefix}${feature}`;
prefixedMessage.onMessage(t.step_func_done((data, e) => {
e.source.close();
assert_equals(data.top, baselineDimensions.top, `"${feature} begins with an invalid character and should be ignored"`);
}));
var win = window.open(prefixedMessage.url(windowURL) + '&expected_screenY=' + baselineDimensions.top, '', featureString);
}, `features "${feature}" should NOT set "top=104"`);
});
// Codepoints that are valid ASCII digits should be collected
// Non-ASCII digits and subsequent code points are ignored
[ 'top=105.5',
'top=105.32',
'top=105LLl',
'top=105^4',
'top=105*3',
'top=105/5',
'top=105 ',
'top=105e1',
'top=105e-1'
].forEach(feature => {
async_test(t => {
var featureString = `${featuresPrefix}${feature}`;
var prefixedMessage = new PrefixedMessageTest();
prefixedMessage.onMessage(t.step_func_done((data, e) => {
e.source.close();
assert_equals(data.top, 105, `"${feature} value after first non-digit will be ignored"`);
}));
var win = window.open(prefixedMessage.url(windowURL) + '&expected_screenY=105', '', featureString);
}, `features "${feature}" should set "top=105"`);
});
}
</script>
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