| <!DOCTYPE html> |
| <html lang="en" > |
| <head> |
| <title>HTTP vs UTF-8 BOM</title> |
| <link rel='author' title='Richard Ishida' href='mailto:ishida@w3.org'> |
| <link rel='help' href='https://html.spec.whatwg.org/multipage/#the-input-byte-stream'> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <meta name='flags' content='http'> |
| <style type='text/css'> |
| .test div { width: 50px; }</style> |
| <link rel="stylesheet" type="text/css" href="support/encodingtests-utf8.css"> |
| </head> |
| <body> |
| |
| |
| |
| <div class='test'><div id='box' class='ýäè'> </div></div> |
| |
| |
| <!--Notes: |
| |
| The HTTP header attempts to set the character encoding to ISO 8859-15. The page starts with a UTF-8 signature. |
| |
| The test contains a div with a class name that contains the following sequence of bytes: 0xC3 0xBD 0xC3 0xA4 0xC3 0xA8. These represent different sequences of characters in ISO 8859-15, ISO 8859-1 and UTF-8. The external, UTF-8-encoded stylesheet contains a selector <code>.test div.ýäè</code>. This matches the sequence of bytes above when they are interpreted as UTF-8. If the class name matches the selector then the test will pass. |
| |
| If the test is unsuccessful, the characters  should appear at the top of the page. These represent the bytes that make up the UTF-8 signature when encountered in the ISO 8859-15 encoding. |
| |
| --> |
| <script> |
| test(function() { |
| assert_equals(document.getElementById('box').offsetWidth, 100); |
| }, "A character encoding set in the HTTP header has lower precedence than the UTF-8 signature."); |
| </script> |
| |
| <div id='log'></div> |
| |
| </body> |
| </html> |
