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a051ab3b69
fixes https://github.com/TryGhost/Team/issues/1652 fixes https://github.com/TryGhost/Ghost/issues/13319 **Image formatting** Added support for changing the format of images via the `handle-image-sizes` middleware (e.g. format SVG to png, jpeg, webp) This change was required: - Not all browsers support SVG favicons, so we need to convert them to PNGs - We can't fit image resizing and formatting in the `serve-favicon` middleware: we need to store the resized image to avoid resizing on every request. This system was already present in the `handle-image-sizes` middleware. To format an uploaded image: - Original URL: https://localhost/blog/content/images/2022/05/giphy.gif - To resize: https://localhost/blog/content/images/size/w256h256/2022/05/giphy.gif (already supported) - To resize and format to webp: https://localhost/blog/content/images/size/w256h256/format/webp/2022/05/giphy.gif - Animations are preserved when converting Gifs to Webp and in reverse, and also when only resizing (https://github.com/TryGhost/Ghost/issues/13319) **Favicons** - Custom favicons are no longer served via `/favicon.png` or `/favicon.ico` (only for default favicon), but use their full path - Added support for uploading more image extensions in Ghost as a favicon: .jpg, .jpeg, .gif, .webp and .svg are now supported (already supported .png and .ico). - File extensions other than jpg/jpeg, png, or ico will always get transformed to the image/png format to guarantee browser support (webp and svg images are not yet supported as favicons by all browsers). For all image formats, other than .ico files: - Allowed to upload images larger than 1000px in width and height, they will get cropped to 256x256px. - Allowed uploading favicons that are not square. They will get cropped automatically. - Allowed to upload larger files, up to 20MB (will get served at a lower file size after being resized) For .svg files: - The minimum size of 60x60px is no longer required. For .ico files: - The file size limit is increased to 200kb (coming from 100kb) |
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