On the web page the .htaccess is:
RewriteEngine On
RewriteBase /
Options -MultiViews
DirectorySlash Off
# skip POST requests
RewriteCond %{REQUEST_METHOD} POST
RewriteRule ^ - [L]
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)/$ /$1 [L,R=301]
RewriteCond %{DOCUMENT_ROOT}/$1.php -f
RewriteRule ^(.+?)/?$ /$1.php [L]
# redirect to .php-less link if requested directly
RewriteCond %{THE_REQUEST} ^[A-Z]+\s.+\.php\sHTTP/.+
RewriteRule ^(.+)\.php $1 [R=301,L]
Options All -Indexes
ErrorDocument 403 /img/error.php
ErrorDocument 404 /img/error.php
ErrorDocument 500 /img/500.png
It causes the next error:
Failed to parse SourceMap: .../js/bootstrap-select.js.map
When I delete it, the error doesn't occur. How should I modify .htaccess?
Solved the problem by changing error.php to a picture ( in error.php there was redirect to index page ).