Github OAuth error not displayed

I misconfigured github oauth by providing a wrong redirection URL. When I try to import a project from github by clicking the github button, I am redirected to the home page with some get parameters :

?error=redirect_uri_mismatch&error_description=The+redirect_uri+MUST+match+the+registered+callback+URL+for+this+application.&error_uri=https%3A%2F%2Fdeveloper.github.com%2Fv3%2Foauth%2F%23redirect-uri-mismatch

but no error is displayed :