che-8250: fix github redirect url, when no port is defined

[ashumilova]

Signed-off-by: Anna Shumilova ashumilo@redhat.com

What does this PR do?

There is the difference between the port detection in native JavaScript and angular for the following format of the URL:

http://example.com/#/some/path

var port = $location.port(); // => 80
var port = location.port; // => empty string
so in this case the redirect URL used to have "80" port appended which is correct, but did not pass validation in keycloak, cause defined URLs have the following format:

What issues does this PR fix or reference?

#8250

Release Notes

N/A

Docs PR

N/A