Use of vary: X-Bb-Conditions in headers

[jasiqli]

@shu

Can it be removed? (this header is messing up caching in cloudflare)

Why are you caching with Cloudflare? Netlify serves sites via a CDN with a cache.

Here are some relevant support guides

[Support Guide] How does Netlify’s CDN handle caching files?

Last reviewed by Netlify Support on August 2023 While the topic of caching effectively is complex, Netlify’s solution is designed to be automatic and worry-free. It shouldn’t require any special configuration or build tools like cache-busting or service workers to deliver an optimal experience. What can go wrong? Some cache-busting techniques can make your site build and load more slowly. Scarier still, modifying Netlify’s default caching settings can break atomic rollbacks and deploys, which…

[Support Guide] Making the most of Netlify's CDN cache

Last reviewed by Netlify Support - August, 2023 Our CDN derives much of its efficiency from files whose checksums don’t change between deploys. For instance, in a blog, you usually write or update one article in one file, while the rest of the content remains unchanged. In this typical use case, we don’t need to re-upload and re-process these files, since our CDN already has them stored - no checksums have changed except the one file. This also means that your visitors’ browsers don’t need to …

[Support Guide] What problems could occur when using Cloudflare in front of Netlify?

Last reviewed by Netlify Support - August, 2023 Note: We recommend not using both Cloudflare’s CDN (“Accelerate and Protect”, the orange cloud in their UI) and Netlify for the same site at the same time. Why? Read on! Netlify’s web service is not designed to work optimally with another CDN “in front of” our CDN. Proxying to our service is in general not supported and we advise you not to do it for best hosting results. Cloudflare has made similar statements that it doesn’t recommend this usa…