Can't use a runtime in HTTPS mode

[trustmaster]

If I log into https://app.flowhub.io and try to access a local runtime I get:

[blocked] The page at 'https://app.flowhub.io/#runtime/' was loaded over HTTPS, but ran insecure content from 'ws://localhost:3569/': this content should also be loaded over HTTPS.
Uncaught SecurityError: Failed to construct 'WebSocket': An insecure WebSocket connection may not be initiated from a page loaded over HTTPS.

Looks like noflo-nodejs and other runtimes need HTTPS implementation in order to work with Flowhub over HTTPS. There should be some kind of secure flag upon runtime registration and Flowhub should check it before opening a runtime and raise a warning if current connection doesn't match the runtime's secure flag.

[forresto]

That's a good idea. Related PR for setting up ssl for node noflo: noflo/noflo-nodejs#11

[bergie]

See also noflo/noflo-nodejs#54

[bergie]

noflo-nodejs supports wss in the next release noflo/noflo-nodejs#54 (comment)