1 files changed, 20 insertions, 0 deletions
diff --git a/docshell/test/browser/browser_viewsource_chrome_to_content.js b/docshell/test/browser/browser_viewsource_chrome_to_content.js
new file mode 100644
index 0000000000..5c73f75a47
--- /dev/null
+++ b/docshell/test/browser/browser_viewsource_chrome_to_content.js
@@ -0,0 +1,20 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+"use strict";
+
+const TEST_PATH = getRootDirectory(gTestPath).replace(
+  "chrome://mochitests/content",
+  "https://example.com"
+);
+const TEST_URI = `view-source:${TEST_PATH}dummy_page.html`;
+
+add_task(async function chrome_to_content_view_source() {
+  await BrowserTestUtils.withNewTab("about:mozilla", async browser => {
+    is(browser.documentURI.spec, "about:mozilla");
+
+    // This process switch would previously crash in debug builds due to assertion failures.
+    BrowserTestUtils.loadURI(browser, TEST_URI);
+    await BrowserTestUtils.browserLoaded(browser);
+    is(browser.documentURI.spec, TEST_URI);
+  });
+});