First webGL project, incorrect header check error

Hi, Im new to Unity, altho my account is old I never gave it a real try until now, I decided to make a webGL project to learn it but cant make it load at all.

I get a "uncaught exception: incorrect header check" error. Im using IIS 8, installed and enabled the dynamic content compression thinking that was the issue, but Im still getting the error, I dont know how this compression/uncompression works.. the build generates compressed files and the vrowser seems to be looking for the uncompressed files, that dont exist.

Any help would be appreciated,
Thanks