WebGL crash after load (uncaught exception: abort(76) at jsStackTrace...) Unity 5.4.3

Hi,
I am getting an error when running my webGL project. The loaders appear but then an error pops up

The web console does not give out any more information.
I can’t see what’s going wrong, works fine in the editor and standalone.

Does anyone have any idea about this ?

After a few tweaks here and there (like un-checking “Strip Engine Code” in the Player Settings), I get a new unidentified error :

For all I know it could be the same one

@mathjouve did you find the solution? I have same problem here. need help