← All tests

Secure Content in about:blank Frame

Tests whether a secure HTTPS image loads correctly inside about:blank iframes

What this tests

The test loads a secure HTTPS image (https://test-website-a.pages.dev/local-frames/local-frame-secure-content/icon-red.png) in two contexts on this HTTPS page:

  1. Directly in the main frame.
  2. Inside a dynamically created about:blank iframe.

An about:blank frame inherits its security origin from the parent, so a secure image should load successfully in both contexts.

This is the secure counterpart to the mixed content test — since the image is loaded over HTTPS, no mixed content blocking should occur.

Expected results

Scenario Main frame about:blank frame Verdict
Any browser Loaded Loaded Pass