Created a new Jenkins-enabled jbossas-7 app in dev (ami-9bcb67f2 - devenv_1870) with the following command:

rhc-create-app -a jbossapp -t jbossas-7 --enable-jenkins -p none

And had no issues with the resulting Jenkins instance. Please provide precise steps to reproduce in a dev environment.

Disregard comment 1, I see the error now in the "Manage Jenkins" page.

I am even facing this error.

I created a DIY application running Python 2.7, Django using uWsgi 1.2.4

So do a Jenkins Server as another app.

Now, whenever, I open jenkins/manage, I find the following error.

"It appears that your reverse proxy set up is broken"

Experiencing this on my public instance. I created the Jenkins instance independently rather than as part of another app. Looking at the network traffic in Chrome, what looks to be happening is that from https://jenkins-sosiouxme.rhcloud.com/manage (note, httpS) the test query it is performing is 

http://jenkins-sosiouxme.rhcloud.com/administrativeMonitor/hudson.diagnosis.ReverseProxySetupMonitor/test-for-reverse-proxy-setup

... so, possibly the instance is confused about the scheme for self-reference. This might be specific to Jenkins. I'll spin up a dev instance and see if the same thing happens.

The problem was as Luke commented - the redirect from https url is to an http one.  Fix was to add a rule to httpd vhost configuration rewriting http urls to https.  

Pull request: https://github.com/openshift/crankcase/pull/515

(In reply to comment #5)
> The problem was as Luke commented - the redirect from https url is to an
> http one.  Fix was to add a rule to httpd vhost configuration rewriting http
> urls to https.  
> 
> Pull request: https://github.com/openshift/crankcase/pull/515

Above pull request is merged, move it to ON_QA to verify.

Verified on devenv_2250

Steps:
1. Create a jenkins server app
2. Open jenkins webconsole -> Jekins -> Manage Jenkins

Result:
Error message is remove now.