My site is rendering incorrectly on FireFox 64.0.2 on MacOS 10.14. Numerous images are showing up blank, and when inspecting these images in the Nework tab of FireFox’s developer tools, I can see these images are being served through CloudFlare and being converted from JPEG files to WebP.
FireFox 64 does not support WebP images. CloudFlare shouldn’t be serving this image format to those browsers.
The behavior is erratic. Not all images are being optimized to WebP. However, quite often it’s the logo banner on the site and it looks quite bad.
When I put CloudFlare into developer mode, the problems go away.
I’m on the Free plan, so Polish in the ‘Speed’ tab is obviously disabled and I wouldn’t expect CloudFlare to be doing ANYTHING to the images on the site.
A sample URL that’s behaving problematically for me would be…
…and typically the top logo banner will fail to render, as well as numerous images in the content down the page.
Any help or insight would be appreciated.