Thought on Better HMR url default

[onichandame]

I am only talking about the default values here. I know the hmr url can be customized in config.

The current hmr url is composed as protocol://host:port. The protocol seems to be dynamically determined at frontend, but the port is hard-coded to the port passed to the dev server. I wonder if it makes sense to let the port be dynamically determined as well? The current default is broken in case the dev server sits behind a reverse proxy, where the port passed to the dev server does not neccessarily match the external port.

related #7849

[sapphi-red]

#7977 seems to implement that behavior.

[onichandame]

Thx