Sprockets v4 support

[rew-ron]

Is there a plan to support Sprockets v4? Right now it's not compiling files with .hbs.erb extension.

See: https://gist.github.com/seanlinsley/23758785a20805ea06b433696129b21c#file-sprockets_v4-rb

[more-ron]

Here's a proposed solution: #176

[brandoncc]

I'd love to see this merged!

[maxsuhak]

is there a chance to see it merged soon? 🙃

[evgenii]

I am also looking at this issue for about a year! Using the solution from #176 as a monkey patch and its working

[mcmegavolt]

Can it be merged into the next release? Please 🙏