FF gives security warning (localhost websocket, mixed-mode connection)

[jacogr]

From @gnunicorn

[jacogr]

And same happens for me, FF 61.0.1

Weirdly enough, doesn't happen in dev mode - so something is amiss with the minification/Babel compilation possibly? (Error pops up somewhere in the React stack)

Not cert related, rather some operation that gives the issue.

[jacogr]

Ok, so this is the issue - we have a secure page https://polkadot.js.org/apps/ that tries to connect to an insecure websocket - ws://localhost:9944 this is not allowed. While FF does treat localhost as "secure" (mixed-mode) over HTTP, it does not do the same for WebSockets.

Toggling network.websocket.allowInsecureFromHTTPS to true from about:config makes the error disappear.

The above, is probably not recommended, since it overrides the actual browser defaults, but brings it in-line with other browsers such as Chrome which treats ws/http localhost connections on a equal footing.

[jacogr]

Closing, cannot be fixed on an app level. (The warning is the best we can do)

[polkadot-js-bot]

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