Error trying to connect to idP (Cross Domain)

[mikamoush]

Hello I'm working on a project (symfony/angular) and implemented a SSO solution thanks to SamlSPBundle. My problem is that when I trigger the login process (by going to a route that needs authentification) I get (on Chrome) an error:
XMLHttpRequest cannot load https://idproviderurl?SAMLRequest=request. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'https://myapp.com' is therefore not allowed access. Has someone ever had the same issue ? Is there a way to bypass this ?

Thanks