location ~ \.shtml$ ssi on; ssi_types text/html; ssi_value_length 512; try_files $uri $uri/ =404;
SHTML (Server Side HTML) is not merely a file extension; it is a powerful dynamic scripting method that allows static HTML pages to include dynamic content—such as date stamps, counters, footers, or navigation menus—without requiring a full database-driven CMS. The key is that SHTML files require a correctly configured web server to parse the SSI (Server Side Includes) commands before sending the output to the user’s browser. view shtml fix
<FilesMatch "\.shtml$"> SSILegacyExprParser On </FilesMatch> If you cannot modify AddHandler (e.g., on shared hosting), add this to your .htaccess : location ~ \
ssi_last_modified on; ssi_silent_errors off; If your SHTML includes other .shtml files, ensure: Check your includes for loops
chmod 644 header.shtml chown www-data:www-data header.shtml If page.shtml includes footer.shtml which includes page.shtml , the server will time out. Check your includes for loops. 4. Firewall or ModSecurity Blocks Some security modules block SSI directives (e.g., <!--#exec cmd="..." --> ). Disable dangerous directives in Apache:
To prevent performance degradation with many includes, add: