Apache reverse proxy with content rewrite

reverse-proxy-rewrite-content

# 
# use case: Reverse proxy for system that returns fully-qualified URLS in the content (eg. wsdl file)
#
# Requires: mod_proxy, mod_proxy_http and mod_substitute
#

ProxyPass           /    http://backend-server/Some/API/On/Some/Path/
ProxyPassReverse    /    http://backend-server/Some/API/On/Some/Path/

# Rewrite URLs in wsdl
#   uses | as delimiter since / is in the pattern
#   "n" flag as this is not a regular expression
#   "i" flag for case insensitive match
#   "q" flag to not flatten as we're not doing any other substitutions
Substitute "s|http://backend-server/Some/API/On/Some/Path/|https://my.proxy.hostname/|niq"