.htaccess - Unable to get rid of 302 redirect -

i have following in htaccess file:

# use front controller index file. serves fallback solution when # every other rewrite/redirect fails (e.g. in aliased environment without # mod_rewrite). additionally, reduces matching process # start page (path "/") because otherwise apache apply rewriting rules # each configured directoryindex file (e.g. index.php, index.html, index.pl). directoryindex app.php  <ifmodule mod_rewrite.c>     rewriteengine on      # determine rewritebase automatically , set environment variable.     # if using apache aliases mass virtual hosting or installed     # project in subdirectory, base path prepended allow proper     # resolution of app.php file , redirect correct uri.     # work in environments without path prefix well, providing safe, one-size     # fits solution. not need in case, can comment     # following 2 lines eliminate overhead.     rewritecond %{request_uri}::$1 ^(/.+)/(.*)::\2$     rewriterule ^(.*) - [e=base:%1]      # sets http_authorization header removed apache     rewritecond %{http:authorization} .     rewriterule .* - [e=http_authorization:%{http:authorization}]      # redirect uri without front controller prevent duplicate content     # (with , without `/app.php`). redirect on initial     # rewrite apache , not on subsequent cycles. otherwise     # endless redirect loop (request -> rewrite front controller ->     # redirect -> request -> ...).     # in case "too many redirects" error or redirected     # start page because apache not expose redirect_status     # environment variable, have 2 choices:     # - disable feature commenting following 2 lines or     # - use apache >= 2.3.9 , replace l flags end flags , remove     #   following rewritecond (best solution)     rewritecond %{env:redirect_status} ^$     rewriterule ^app\.php(/(.*)|$) %{env:base}/$2 [r=301,l]      # if requested filename exists, serve it.     # want let apache serve files , not directories.     rewritecond %{request_filename} -f     rewriterule .? - [l]      # rewrite other queries front controller.     rewriterule .? %{env:base}/app.php [l] </ifmodule>  <ifmodule !mod_rewrite.c>     <ifmodule mod_alias.c>         # when mod_rewrite not available, instruct temporary redirect of         # start page front controller explicitly website         # , generated links can still used.         redirectmatch 302 ^/$ /app.php/         # redirecttemp cannot used instead     </ifmodule> 

each time enter in url domain name without www example.com see 302 redirect. how can fix this?

i tried adding following:

rewritecond %{https}s ^on(s)|  rewriterule ^(.*)$ http%1://www.%{http_host}/$1 [r=301,l] 

but above did not resolve issue.