| <!DOCTYPE html> |
| <title>Makes sure that preload requests respect CSP directives that are added after the preload</title> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="/preload/resources/preload_helper.js"></script> |
| <link id="preload" rel=preload href="resources/square.png" as=image> |
| <body> |
| <script> |
| setup({single_test: true}); |
| |
| const preload = document.querySelector("#preload"); |
| preload.addEventListener("load", async () => { |
| const meta = document.createElement("meta"); |
| meta.httpEquiv = "Content-Security-Policy"; |
| meta.content = "img-src 'none'"; |
| document.head.appendChild(meta); |
| const img = document.createElement("img"); |
| img.src = preload.href; |
| document.body.appendChild(img); |
| const load = new Promise(resolve => img.addEventListener("load", () => resolve('load'))); |
| const error = new Promise(resolve => img.addEventListener("error", () => resolve('error'))); |
| const result = await Promise.any([load, error]); |
| assert_equals(result, "error"); |
| done(); |
| }); |
| </script> |
| |