Route all urls to index.html

.htaccess

<IfModule mod_rewrite.c>
  RewriteEngine On
  
  # force ssl
  RewriteCond %{HTTPS} off
  RewriteRule ^(.*)$ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]
  
  RewriteBase /
  RewriteRule ^index\.html$ - [L]
  RewriteCond %{REQUEST_FILENAME} !-f
  RewriteCond %{REQUEST_FILENAME} !-d
  RewriteRule . /index.html [L]
</IfModule>

<Files index.html|service-worker.js>
  FileETag None
  Header unset ETag
  Header set Cache-Control "max-age=0, no-cache, no-store, must-revalidate"
  Header set Pragma "no-cache"
  Header set Expires "Wed, 11 Jan 1984 05:00:00 GMT"
</Files>

Header add Access-Control-Allow-Origin "*"
Header add Access-Control-Allow-Methods: "GET,POST,OPTIONS,DELETE,PUT"