Fix #76: hardcode X-Forwarded-Port due to SSL Passthrough

[jgmize]

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[k8s-reviewable]

This change is 

[coveralls]

Coverage decreased (-0.04%) to 39.823% when pulling 7ef63fd on jgmize:fix-x-forwarded-port into f0762ba on kubernetes:master.

[jgmize]

I signed it!

[jgmize]

@aledbf I just saw that you had already assigned #76 to yourself; my apologies for any duplicate work. If you have a better fix in mind feel free to close this.

[aledbf]

@jgmize sadly we cannot hard code the value. Please check #82