Why 404.html page is not shown

I have this .htaccess

RewriteEngine On

ErrorDocument 404 /404.html

RewriteBase /

RewriteRule ^$ index\.html

RewriteRule ^(.+)\.html$ index.php?page=$1 [L]

RewriteRule ^robots.txt$ /generator.php?what=robots [L]

RewriteRule ^sitemap.xml$ /generator.php?what=sitemap [L开发者_运维知识库]

If I go at: site.com/blablalblabla I get 404 NOT FOUND, but it doens't show my 404.html page. Why?

Thank you

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IMHO if the server fires up a 404, the 404.html will be the new REQUEST_URI to transform. The new uri will also go over all the rewrite rules and ending up redirected to index.php?page=404.

Try do add this rule condition:

RewriteCond %{REQUEST_URI} !^\/404\.html$
RewriteRule ^(.+)\.html$ index.php?page=$1 [L]

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Try making a 404.md file with the following inside:

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permalink: <insert 404 file path here>
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