CONSOLE ERROR: line 121: Mixed Content: The page at 'https://web-platform.test:8444/mixed-content/script-tag/no-opt-in/same-host-http/top-level/swap-scheme-redirect/blockable/no-opt-in-blocks.https.html' was loaded over HTTPS, but requested an insecure script 'http://web-platform.test:8001/mixed-content/generic/expect.py?redirection=swap-scheme-redirect&action=purge&key=c2617010-b395-4296-bad7-49ba39095a5b&path=%2Fmixed-content&content_type=text/javascript'. This request has been blocked; the content must be served over HTTPS.
