X-Accel-Redirect in LUA?

Hi
Is it possible to trigger an X-Accel-Redirect from within lua code?

Example:

location /
{

lua code should trigger X-Accel-Redirect to either location1 or

location2? Somehow??
access_by_lua_file /home/nginx/conf/nginx.lua;

if it hasn’t set X-Accel-Redirect, proxy to some other server -

important
proxy_pass http://10.0.0.2;
}

location /location1 {
internal;
root /var/www/loc1;
}

location /location2 {
internal;
root /var/www/loc2;
}

Richard K.
Systems Developer | M247 Limited
Internal Dial 2210 | Mobile +44 7970 621236