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<!DOCTYPE html>
<meta charset="utf-8">
<title>HTML: window.open `features`: non-integer values for legacy feature `screenx`</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 featuresPrefix = `width=401,height=204,top=0,`;
var windowURL = 'resources/message-opener.html';
// https://html.spec.whatwg.org/multipage/infrastructure.html#rules-for-parsing-integers
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 = `${featuresPrefix}left=0`;
var prefixedMessage = new PrefixedMessageTest();
prefixedMessage.onMessage((data, e) => {
e.source.close();
runWindowTests(data);
});
var win = window.open(prefixedMessage.url(windowURL), '', featureString);
});
function runWindowTests (baselineDimensions) {
// When code point in first position is not an ASCII digit, "+" or "-",
// that's an error and the value becomes 0
[ 'screenx=/104',
'screenx=_104',
'screenx=L104'
].forEach(feature => {
async_test(t => {
var prefixedMessage = new PrefixedMessageTest();
var featureString = `${featuresPrefix}${feature}`;
prefixedMessage.onMessage(t.step_func_done((data, e) => {
e.source.close();
assert_equals(data.left, baselineDimensions.left, `"${feature} begins with an invalid character and should be ignored"`);
}));
var win = window.open(prefixedMessage.url(windowURL), '', featureString);
}, `features "${feature}" should NOT set "left=104"`);
});
// Codepoints that are valid ASCII digits should be collected
// Non-ASCII digits and subsequent code points are ignored
[ 'screenx=105.5',
'screenx=105.32',
'screenx=105LLl',
'screenx=105^4',
'screenx=105*3',
'screenx=105/5',
'screenx=105 ',
'screenx=105e1',
'screenx=105e-1'
].forEach(feature => {
async_test(t => {
var prefixedMessage = new PrefixedMessageTest();
var featureString = `${featuresPrefix}${feature}`;
prefixedMessage.onMessage(t.step_func_done((data, e) => {
e.source.close();
assert_equals(data.left, 105, `"${featureString} value after first non-digit will be ignored"`);
}));
var win = window.open(prefixedMessage.url(windowURL), '', featureString);
}, `features "${feature}" should set "left=105"`);
});
}
</script>
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