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Test Info:

<!DOCTYPE html>
<meta charset="utf-8">
<title>HTML: window.open `features`: non-integer values for feature `width`</title>
<meta name=timeout content=long>
<!-- 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 = `top=0,left=0,height=401,`;
var windowURL = 'resources/message-opener.html';
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 = `${featuresPrefix}width=0`;
var prefixedMessage = new PrefixedMessageTest();
prefixedMessage.onMessage((data, e) => {
e.source.close();
runWindowTests(data);
});
var win = window.open(prefixedMessage.url(windowURL), '', featureString);
});
function runWindowTests (baselineDimensions) {
// The absence of the sizing feature should have the same behavior
// as that feature set to 0
[ featuresPrefix,
'top=0,left=0',
].forEach(feature => {
async_test(t => {
var prefixedMessage = new PrefixedMessageTest();
prefixedMessage.onMessage(t.step_func_done((data, e) => {
e.source.close();
assert_equals(data.width, baselineDimensions.width);
}));
var win = window.open(prefixedMessage.url(windowURL), '', feature);
}, `${feature}: absence of feature "width" should be treated same as "width=0"`);
});
// When code point in first position is not an ASCII digit, "+" or "-",
// that's an error and the value becomes 0
[ 'width=/404',
'width=_404',
'width=L404'
].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.width, baselineDimensions.width, `"${feature} begins with an invalid character and should be ignored"`);
}));
var win = window.open(prefixedMessage.url(windowURL), '', featureString);
}, `features "${feature}" should NOT set "width=404"`);
});
// Codepoints that are valid ASCII digits should be collected
// Non-ASCII digits and subsequent code points are ignored
[ 'width=405.5',
'width=405.32',
'width=405LLl',
'width=405^4',
'width=405*3',
'width=405/5',
'width=405 ',
'width=405e1',
'width=405e-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.width, 405, `"${featureString} value after first non-digit will be ignored"`);
}));
var win = window.open(prefixedMessage.url(windowURL), '', featureString);
}, `features "${feature}" should set "width=405"`);
});
}
</script>