Cache-Control (immutable) not applied to minify cache files

[martijnvt1981]

Hi,

When enabling browser cache settings in W3 Total Cache (including Cache-Control: public, max-age=..., immutable), the headers are correctly applied to regular static assets (e.g. theme CSS/JS).

However, they are not applied to minified assets served from:

/wp-content/cache/minify/

Observed

Regular assets:

Cache-Control: public, max-age=31536000, immutable

Minify assets:

• No Cache-Control header
• Only Expires, ETag, Pragma

Expected

Minified assets should receive the same cache headers, especially since filenames are hashed and safe for long-term caching.

Suggestion

Ensure minify cache files inherit browser cache settings or explicitly set Cache-Control headers.

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Thanks!

[martijnvt1981]

@cssjoe Would you mind taking a look at this? Thank you :)