Fix bug in avoiding request/response loop
Send request to localhost instead of sending error
Proxying request does not work, back to 500
Fix indentation
Add debug output and flag
Fix isNotModified date comparison
Fix js code validation warnings/errors
Add age header to response
Set all headers key at once
Refactor parsing of cache-control header
Send path instead of full url in request header
Fix check for conditional request

Read request headers instead of response headers