Mozilla’s previous blog post on the topic says > Mozilla will provide developer tools to ease the transition to secure contexts and enable testing without an H

Mozilla’s previous blog post on the topic says > Mozilla will provide developer tools to ease the transition to secure contexts and enable testing without an HTTPS server. https://blog.mozilla.org/security/2018/01/15/secure-contexts-everywhere/ https://blog.mozilla.org/security/2018/01/15/secure-contexts... But the bugzilla entry they linked to with that has been unassigned for two years, so maybe they changed their minds or figure the localhost exception is sufficient. https://bugzilla.mozilla.org/show_bug.cgi?id=1410365 https://bugzilla.mozilla.org/show_bug.cgi?id=1410365 The last comment proposes a whitelist for development domains, but no response to it.