PAM Sample Portal Status code: 406. Error: Not Acceptable.

I installed MIM 2016 SP2 Server in privOnly mode, with PAM feature and have the following error when deploying the PAM Sample portal.

Oops! Something went wrong. The ajax calls failed, please contact your administrator.
Status code: 406.
Error: Not Acceptable

When testing with http://mydomain.local:port/api/pamresources/pamroles I got the following error :

406 - Client browser does not accept the MIME type of the requested page.

So if I understand the error, it seems that the server is sending some information that the browser cannot parse, which is strange since I took the the exact files in the src folder in github .

Can someone help to resolve this issue ?


Thanks in advance.