# invoke rewrite engine
RewriteEngine On
RewriteBase /

# Redirect to www
RewriteCond %{HTTP_HOST} !^www\.
RewriteRule ^(.*)$ http://www.%{HTTP_HOST}/$1 [R=301,L]

#Redirect 400,401,403,404,500 to main website
ErrorDocument 400 https://www.wantglasses.co.uk/
ErrorDocument 401 https://www.wantglasses.co.uk/
ErrorDocument 403 https://www.wantglasses.co.uk/
ErrorDocument 404 https://www.wantglasses.co.uk/
ErrorDocument 500 https://www.wantglasses.co.uk/

# redirect all extension to html
RewriteCond %{QUERY_STRING} ^$
RewriteRule ^(.*)\.shtml$ $1.html [nc]
RewriteCond %{QUERY_STRING} ^$
RewriteRule ^(.*)\.phtml$ $1.html [nc]
RewriteCond %{QUERY_STRING} ^$
RewriteRule ^(.*)\.htm$ $1.html [nc]
RewriteCond %{QUERY_STRING} ^$
RewriteRule ^(.*)\.php$ $1.html [nc]
RewriteCond %{QUERY_STRING} ^$
RewriteRule ^(.*)\.aspx$ $1.html [nc]
RewriteCond %{QUERY_STRING} ^$
RewriteRule ^(.*)\.asp$ $1.html [nc]
RewriteCond %{QUERY_STRING} ^$
RewriteRule ^(.*)\.jsp$ $1.html [nc]

# Add a trailing slash (/) to a URL, if the URL did not have a trailing slash before
RewriteRule ^([^.]*[^/])$ /$1/ [L,R=301]

RewriteRule ^index.html$ / [L,R=301]
`