If you are getting a proxy timeout error when you try to view a SCM page, you may need to configure the Apache 2.2 Proxy Timeout to 300 or less in the httpd.conf file.
If you get the following error while attempting to view a SCM page in SFEE:
The proxy server received an invalid response from an upstream server.
The proxy server could not handle the request
GET /integration/viewcvs/viewcvs.cgi/ibe-rules/tags/phases/ibe-rules_09.02.0-Ph-200902_test_20090105/
Reason: Error reading from remote server
Configure your Apache 2.2 Proxy Timeout to 300 or less in the httpd.conf file.