Handle file protocol on initialisation

[jtfell]

When trying to bundle my found-relay (modern) react app into an electron distributable, I realised that the routing wouldn't work on first load as the pathname would be something like /home/jtfell/project/dist/index.html when I really wanted to start at /.

This change seems to have fixed that, with all subsequent internal links working as relative paths. I'm not at all sure if this is the best approach to handle all the edge-cases surrounding the file protocol but it works for me.

One issue I ran into is that making the change here causes it not to be triggered when the page is refreshed. Do you have any ideas on a better place to slot this in @taion? Even if you don't want to merge this it would be great to get your thoughts.

[taion]

I don't think this is quite right. I think you either want to use base name, or just use an in-memory protocol or a hash protocol. The former would be mostly trivial to implement, while the latter would take a bit more work.

The issue here is that, while this might work for Electron, it wouldn't be quite right outside of Electron; there's no way you could refresh the page and end up back where you want to be.

[jquense]

We should think about open sourcing/including the in memory protocol I wrote for our Electron app btw

[taion]

Huh, I had no idea that existed.

[jquense]

Yeah I meant to send it over afterwards but moved on to other stuff and forgot about it :P

[taion]

@jtfell Sorry for the delay here. We're recommending going with #44 for Electron use cases.