Add note about Image transformation compat with Cloudflare Pages

Author: TorbjornHoltmon

src/content/docs/images/transform-images/transform-via-workers.mdx

@@ -278,3 +278,13 @@ When testing image resizing, please deploy the script first. Resizing will not b
 Resized images are always cached. They are cached as additional variants under a cache entry for the URL of the full-size source image in the `fetch` subrequest. Do not worry about using many different Workers or many external URLs — they do not influence caching of resized images, and you do not need to do anything for resized images to be cached correctly.
 
 If you use the `cacheKey` fetch option to unify caches of multiple different source URLs, you must not add any resizing options to the `cacheKey`, as this will fragment the cache and hurt caching performance. The `cacheKey` option is meant for the full-size source image URL only, not for its resized variants.
+
+## Pages
+
+:::caution[Warning]
+
+
+Image transformation does not work on Cloudflare Pages.
+
+
+:::