Sorry for the double post, but wanted to post the complete conf ... just in case there was a mistake


server {

listen 80;
server_name 127.0.0.1 10.0.9.44;

set $_ActualTarget "";

location / {

rewrite_by_lua '
local _args = ngx.req.get_uri_args()
ngx.var._ActualTarget = _args["_url_"];
_args["_url_"] = nil
print(ngx.var._ActualTarget)
ngx.req.set_uri_args(_args);
';

resolver 8.8.8.8;
proxy_pass_request_body on;
proxy_pass_request_headers on;
proxy_pass $scheme://$_ActualTarget;

header_filter_by_lua '
ngx.header.content_length = nil
ngx.header.set_cookie = nil

if ngx.header.location then
local _location = ngx.header.location
_location = ngx.escape_uri(_location)
_location = "http://10.0.9.44/?_url_=" .. _location
ngx.header.location = _location
end
';

body_filter_by_lua '
local escUri = function (m)
local _str = "href=\\"http://10.0.9.44/?_url_="
_str = _str .. ngx.escape_uri(m[1]) .. "\\""
return _str
end

local newStr, n, err = ngx.re.gsub(ngx.arg[1], "href=\\"(.*)\\"", escUri, "ijox")
print(ngx.arg[1])
';
}

#
# redirect server error pages to the static page /50x.html
#

error_page 500 502 503 504 /50x.html;
location = /50x.html {
root /var/www/html;
}
}