| <!DOCTYPE html> |
| <!-- Test verifies that a stylesheet mislabeled as html won't execute with and |
| without CORB if the nosniff response header is present. |
| |
| The expected behavior is covered by the Fetch spec at |
| https://fetch.spec.whatwg.org/#should-response-to-request-be-blocked-due-to-nosniff? |
| |
| See also the following tests: |
| - fetch/nosniff/stylesheet.html |
| --> |
| <meta charset="utf-8"> |
| <title>CSS is not applied (because of nosniff + non-text/css headers)</title> |
| <script src=/resources/testharness.js></script> |
| <script src=/resources/testharnessreport.js></script> |
| |
| <!-- Default style that will be applied if the external stylesheet resource |
| below won't load for any reason. This stylesheet will set h1's |
| color to green (see |default_color| below). --> |
| <style> |
| h1 { color: green; } |
| </style> |
| |
| <!-- This stylesheet (if loaded) should set h1#header's color to red |
| (see |external_color| below). --> |
| <!-- www1 is cross-origin, so the HTTP response is CORB-eligible --> |
| <link rel="stylesheet" type="text/css" |
| href="http://{{domains[www1]}}:{{ports[http][0]}}/fetch/corb/resources/css-mislabeled-as-html-nosniff.css"> |
| |
| <body> |
| <h1 id="header">Header example</h1> |
| <p>Paragraph body</p> |
| </body> |
| |
| <script> |
| test(() => { |
| let style = getComputedStyle(document.getElementById('header')); |
| const external_color = 'rgb(255, 0, 0)'; // red |
| const default_color = 'rgb(0, 128, 0)'; // green |
| assert_equals(style.getPropertyValue('color'), default_color); |
| assert_not_equals(style.getPropertyValue('color'), external_color); |
| }); |
| </script> |
