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