My site is using AVIF but the report warns that 'No WebP image found on the website'

[cloydlau]

No description provided.

[janreges]

@cloydlau - thank you for this issue. In the next version, there will be a fix that will not report missing WebP in case of AVIF support.

WebP has slightly better support for older browsers than AVIF, but today we consider this to be a negligible difference. AVIF is now supported by all major browsers on all major platforms/devices. It is no longer necessary to require WebP if AVIF is also available.

[cloydlau]

Thanks for the reply, it's worth mentioning that my site also does progressive enhancement, which means it falls back to WebP if AVIF isn't supported, and to JPG/PNG if WebP isn't supported either. So presumably this scenario needs to be taken into account as well.