Fonts not correctly loaded if Worker enabled on Wordpress site

[yichnal]

Even without any string replacement, if I enable the Worker on Cloudflare, it breaks the Wordpress/Elementor website.
The errors in the browser console are :

• Failed to decode downloaded font: < URL >
  (38 lines like : Failed to decode downloaded font: https://site.com/wp-content/themes/my-listing/assets/fonts/GlacialIndifference/Bold.otf)
• OTS parsing error: incorrect entrySelector for table directory
• OTS parsing error: Size of decompressed WOFF 2.0 is less than compressed size
• OTS parsing error: Failed to convert WOFF 2.0 font to SFNT
• OTS parsing error: incorrect file size in WOFF header
  The errors are supposed to happen at /index:1

The website works well without the Worker.