Play Framework replying not modified when static assets are changed

Question

I moved a Play Framework Project to a new PC and everything is working fine but there is one annoying problem: All static assets return the 304: Not Modified header even after I edit them. And I think I found the origin of the problem, play framework replies following in curl:
HTTP/1.1 200 OK Cache-Control: no-cache Content-Length: 527 Content-Type: application/javascript; charset=utf-8 Date: Wed, 14 Jan 2015 17:49:24 GMT ETag: "4a0670efaaa84f8734d67d4557a7309dfe235301" Last-Modified: Thu, 01 Jan 1970 00:00:00 GMT
The Last-Modified: Thu, 01 Jan 1970 00:00:00 GMT part seems wrong to me. And also when I edit something, the ETag isn't changing. This is annoying because Chrome doesn't load the changes unless I delete the cache and this makes mobile development nearly impossible.
The same thing also happens when I create a new application. It worked in my old Laptop wich had also Windows 8.

Answer 1

It looks like #3722.

Assets controller sends constant etag if path has a space in the name

Does the path to your workspace or to your assets has a space in it ? If so, remove it and try again.

I hope it helps.