Source code display doesn't work on iOS... or maybe it does, but doesn't signal type to user?

It looks like you're providing binary data of some kind in response to the generate source button. In mobile safari, I get a binary file with a URL like blob:https://latexresu.me/a833e5be-1f05-46b5-b1c6-b445d5ad6082 --- shouldn't it just be a plain text .tex file?

Actually, poking around, I see that the very last commit just set that to application/zip. That wasn't clear to me from the interface---is source code download multiple files? Maybe it would be helpful to send the user a signal that they should be downloading a zip, like give it a filename or something?