This issue is automatically created based on existing pull request: #40685: fix: remove IE/Flash references and fix font MIME types in htaccess

Description

Remove references to dead technologies (Internet Explorer, Adobe Flash) and update deprecated font MIME types to IANA-registered standards in .htaccess files.

Changes

1. Remove IE X-UA-Compatible header and document modes section

pub/.htaccess sets X-UA-Compatible: IE=edge and includes a large FilesMatch block to unset it on non-HTML resources. Internet Explorer is completely end-of-life:

• IE 11 reached EOL in June 2022
• Edge has used Chromium since January 2020
• No modern browser recognizes X-UA-Compatible

This removes the header, the FilesMatch exclusion block, and the explanatory comment section (~20 lines).

2. Remove Flash moxieplayer reference

pub/static/.htaccess contains a rewrite rule for moxieplayer.swf (a Flash-based media player). Adobe Flash reached end-of-life in December 2020 and is blocked by all modern browsers.

3. Fix deprecated font MIME types

Both pub/media/.htaccess and pub/static/.htaccess use non-standard application/x-font-* MIME types for fonts. These are replaced with the IANA-registered types:

Updated in both AddType directives and ExpiresByType directives.

Files Changed

• pub/.htaccess (IE section removal)
• pub/static/.htaccess (Flash removal + font MIME types)
• pub/media/.htaccess (font MIME types)

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