1 files changed, 38 insertions, 0 deletions
diff --git a/dom/security/test/general/browser_file_nonscript.js b/dom/security/test/general/browser_file_nonscript.js
new file mode 100644
index 0000000000..95243c32a7
--- /dev/null
+++ b/dom/security/test/general/browser_file_nonscript.js
@@ -0,0 +1,38 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+add_task(async function test_fileurl_nonscript_load() {
+  await SpecialPowers.pushPrefEnv({
+    set: [["security.block_fileuri_script_with_wrong_mime", true]],
+  });
+
+  let file = getChromeDir(getResolvedURI(gTestPath));
+  file.append("file_loads_nonscript.html");
+  let uriString = Services.io.newFileURI(file).spec;
+
+  let tab = await BrowserTestUtils.openNewForegroundTab(gBrowser, uriString);
+  registerCleanupFunction(async function () {
+    BrowserTestUtils.removeTab(tab);
+  });
+
+  let counter = await SpecialPowers.spawn(tab.linkedBrowser, [], async () => {
+    Cu.exportFunction(Assert.equal.bind(Assert), content.window, {
+      defineAs: "equal",
+    });
+    content.window.postMessage("run", "*");
+
+    await new Promise(resolve => {
+      content.window.addEventListener("message", event => {
+        if (event.data === "done") {
+          resolve();
+        }
+      });
+    });
+
+    return content.window.wrappedJSObject.counter;
+  });
+
+  is(counter, 1, "Only one script should have run");
+});