1 files changed, 130 insertions, 0 deletions
diff --git a/browser/components/extensions/test/browser/file_inspectedwindow_reload_target.sjs b/browser/components/extensions/test/browser/file_inspectedwindow_reload_target.sjs
new file mode 100644
index 0000000000..2a7a401360
--- /dev/null
+++ b/browser/components/extensions/test/browser/file_inspectedwindow_reload_target.sjs
@@ -0,0 +1,130 @@
+/* -*- Mode: indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* vim: set sts=2 sw=2 et tw=80 ft=javascript: */
+"use strict";
+
+Cu.importGlobalProperties(["URLSearchParams"]);
+
+function handleRequest(request, response) {
+  let params = new URLSearchParams(request.queryString);
+
+  switch (params.get("test")) {
+    case "cache":
+      /* eslint-disable-next-line no-use-before-define */
+      handleCacheTestRequest(request, response);
+      break;
+
+    case "user-agent":
+      /* eslint-disable-next-line no-use-before-define */
+      handleUserAgentTestRequest(request, response);
+      break;
+
+    case "injected-script":
+      /* eslint-disable-next-line no-use-before-define */
+      handleInjectedScriptTestRequest(request, response, params);
+      break;
+  }
+}
+
+function handleCacheTestRequest(request, response) {
+  response.setHeader("Content-Type", "text/plain; charset=UTF-8", false);
+
+  if (request.hasHeader("pragma") && request.hasHeader("cache-control")) {
+    response.write(
+      `${request.getHeader("pragma")}:${request.getHeader("cache-control")}`
+    );
+  } else {
+    response.write("empty cache headers");
+  }
+}
+
+function handleUserAgentTestRequest(request, response) {
+  response.setHeader("Content-Type", "text/html", false);
+
+  const userAgentHeader = request.hasHeader("user-agent")
+    ? request.getHeader("user-agent")
+    : null;
+
+  const query = new URLSearchParams(request.queryString);
+  if (query.get("crossOriginIsolated") === "true") {
+    response.setHeader("Cross-Origin-Opener-Policy", "same-origin", false);
+  }
+
+  const IFRAME_HTML = `
+  <!doctype html>
+  <html>
+    <head>
+      <meta charset=utf8>
+      <script>
+        globalThis.initialUserAgent = navigator.userAgent;
+      </script>
+    </head>
+    <body>
+      <h1>Iframe</h1>
+    </body>
+  </html>`;
+  // We always want the iframe to have a different host from the top-level document.
+  const iframeHost =
+    request.host === "example.com" ? "example.org" : "example.com";
+  const iframeOrigin = `${request.scheme}://${iframeHost}`;
+  const iframeUrl = `${iframeOrigin}/document-builder.sjs?html=${encodeURI(
+    IFRAME_HTML
+  )}`;
+
+  const HTML = `
+  <!doctype html>
+  <html>
+    <head>
+      <meta charset=utf8>
+      <title>test</title>
+      <script>
+        "use strict";
+        /*
+         * Store the user agent very early in the document loading process
+         * so we can assert in tests that it is set early enough.
+         */
+        globalThis.initialUserAgent = navigator.userAgent;
+        globalThis.userAgentHeader = ${JSON.stringify(userAgentHeader)};
+      </script>
+    </head>
+    <body>
+      <h1>Top-level</h1>
+      <h2>${userAgentHeader ?? "no user-agent header"}</h2>
+      <iframe src='${iframeUrl}'></iframe>
+    </body>
+  </html>`;
+
+  response.write(HTML);
+}
+
+function handleInjectedScriptTestRequest(request, response, params) {
+  response.setHeader("Content-Type", "text/html; charset=UTF-8", false);
+
+  let content = "";
+  const frames = parseInt(params.get("frames"), 10);
+  if (frames > 0) {
+    // Output an iframe in seamless mode, so that there is an higher chance that in case
+    // of test failures we get a screenshot where the nested iframes are all visible.
+    content = `<iframe seamless src="?test=injected-script&frames=${
+      frames - 1
+    }"></iframe>`;
+  }
+
+  response.write(`<!DOCTYPE html>
+    <html>
+      <head>
+       <meta charset="utf-8">
+       <style>
+         iframe { width: 100%; height: ${frames * 150}px; }
+       </style>
+      </head>
+      <body>
+       <h1>IFRAME ${frames}</h1>
+       <pre>injected script NOT executed</pre>
+       <script type="text/javascript">
+         window.pageScriptExecutedFirst = true;
+       </script>
+       ${content}
+      </body>
+    </html>
+  `);
+}