Options -Indexes
RewriteEngine On
RewriteBase /fumavendor/

# Bypass rewrites for actual files/directories
RewriteCond %{REQUEST_FILENAME} -f
RewriteRule ^ - [L]

# Bypass rewrites for actual directories
RewriteCond %{REQUEST_FILENAME} -d
RewriteRule ^ - [L]

# Route all other requests to index.html
RewriteRule ^ index.html [L]