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<!doctype html>
<meta charset=windows-1252>
<title>Fragment navigation: encoding</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<div id="log"></div>
<div style=height:10000px></div>
<div id=ÿ></div>
<div id=></div>
<div id=♡ÿ><div>
<script>
function goToTop() {
location.hash = "top";
assert_equals(self.scrollY, 0, "#top");
}
test(() => {
assert_equals(location.hash, "", "Page must be loaded with no hash");
location.hash = "\u00FF";
assert_equals(location.hash, "#%C3%BF");
assert_greater_than(self.scrollY, 1000, "#%C3%BF");
}, "U+00FF should find U+00FF");
test(() => {
goToTop();
location.hash = "%EF%BB%BF";
assert_greater_than(self.scrollY, 1000, "#%EF%BB%BF");
}, "Percent-encoded UTF-8 BOM should find U+FEFF as BOM is not stripped when decoding");
test(() => {
goToTop();
location.hash = "%FF";
assert_equals(self.scrollY, 0, "#%FF");
}, "%FF should not find U+00FF as decoding it gives U+FFFD");
test(() => {
goToTop();
// U+2661 in UTF-8 + %FF.
// Chrome had an issue that the following fragment was decoded as U+2661 U+00FF.
// https://github.com/whatwg/html/pull/3111
location.hash = "%E2%99%A1%FF";
assert_equals(self.scrollY, 0, "%E2%99%A1%FF");
goToTop();
}, "Valid UTF-8 + invalid UTF-8 should not be matched to the utf8-decoded former + the isomorphic-decoded latter");
</script>
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