Fixed '_url with backslashes' in Windows

[egbertvanderhout]

Fixes an issue in Windows where dynamic-content generates a property _url for all dynamic content. This property currently gets backslashes in stead of regular ones.

[jescalan]

Hmm... so really this is an issue with the paths roots is generating through roots.config.out(), if I'm not mistaken? This is more of a temporary patch than fixing it at the source.

Could you take a look at the output of roots.config.out(f.file, ctx.adapter.output) in this context and let me know if it's generating incorrect slashes? If so, we should make the fix in roots core instead and this problem will be fixed across all extensions 😀

[egbertvanderhout]

I'm sure where roots.config.out is used for but it generates Windows-style file paths, e.g. C:\RootsProjects\MyRootsProject\pages\page-001.html. Have a look at https://gist.github.com/domenic/2790533#paths-and-urls. I guess a replace to forward slashed is needed on each place where URL's are generated. Another example: https://github.com/npm/npm-www/pull/88.

[jescalan]

Ahhh got it now. Sorry, my brain just blanked out for a minute there. That function generates correct output for windows, during the transition from output path to url, it just needs to be transformed to work on a web server which do not use windows-style paths.

Sorry I was a little slow on the uptake there, I never deal with windows so I'm not used to windows path stuff.