Add https support to standalone DevTools

[NE-SmallTown]

I notice that the standalone react-devtools use http instead https like "<script src="http://192.1.2.3:8097"></script>" (src code)，but my website is always https, so it will get broken because I cant change it to http if it's in iframe(it's diffcult to change the host environment/website protocol).

I'm not familar with the react-devtools implementations, maybe something cause it can only use http to open the server, happy to hear the details, thanks!

React-devtools: 3.6.3

[kunukn]

It might be because a http server is used?
https://github.com/facebook/react/blob/master/packages/react-devtools-core/src/standalone.js#L246

There is the possibility to use the https server variant, but you need some certificate setup and such.
https://nodejs.org/api/https.html#https_https_createserver_options_requestlistener

[NE-SmallTown]

Yea, I think certificate is not a problem because we can do something like https://webpack.js.org/configuration/dev-server/#devserverhttps

[NE-SmallTown]

@bvaughn @gaearon friendly ping~ If you don't mind I am not familar with devtools's code, I could try to work on this

[bvaughn]

Feel free. Haven't thought about this enough to have an opinion yet.

[bvaughn]

#19191

[NE-SmallTown]

Sorry Brian, these days are too busy, I did some work on NE-SmallTown@cebb026 but have not enough time to do more verification, add docs and add tests, so I have to left it there. Sorry agign.