.htaccess mask original url

Question

I have this URL:

localhost:1001/project/index.html

And if I write this URL:

localhost:1001/project/index.html.twig

I want it to be masked to the first one ( localhost:1001/project.index.html ) but the URL processed must be the second one (don't know if it is possible).

I have tried all of this but I think all is wrong in my .htaccess in project folder root, because nothing worked as I want:

a)

RedirectMatch 302 /project/index.html.twig /project/index.html

b)

RedirectMatch 301 /project/index.html.twig /project/index.html

c)

RewriteCond %{HTTP_HOST} ^/project/index.html.twig$ [NC]
RewriteRule /project/index.html [R=301,L]

COMMENTS

Process I want to obtain:

1. I write in the browser: localhost:1001/project/index.html.twig
2. Somehow I want my .htaccess to convert that URL in the browser to localhost:1001/project/index.html and see that URL in the browser
3. Internally after that I want to process the original URL: localhost:1001/project/index.html.twig

Answer 1

This probably is what you are looking for if you want an external redirection:

RewriteEngine on
RewriteRule ^/?project/index\.html$ /project/index.html.trig [R=301]
RewriteRule ^/?project/index\.html\.twig$ /project/index.html [END]

In case you want an internal rewrite use that variant:

RewriteEngine on
RewriteRule ^/?project/index\.html\.twig$ /project/index.html [R=301]
RewriteRule ^/?project/index\.html$ /project/index.html.trig [END]

These rules should work likewise, in the http servers host configuration or in a dynamic configuration file (".htaccess" style file). You should definitely prefer the first option if you have access to it. If you need to use a dynamic configuration file then take care that it's interpretation is enabled at all and that it is located in the host's DOCUMENT_ROOT folder.

In case you receive a server internal error (http status 500) using that rule chances are that you operate an old version of the apache http server. You will find a definite hint on an unknown [END] flag in the http servers error log file in that case. Try using the older [L] flag in that case, it will probably work the same here, though that depends on your setup.