The enable parameter activates image upscaling functionality that is disabled by default.
Enable functionality that is disabled by default.
Image upscaling is disabled by default and discouraged from use. Image upscaling increases both the file size and delivery time of the image to the end user with no visual improvement in quality. We recommend handling upscaling on the client-side (e.g. web browser, css, native app) by setting the width/height attributes of the image.
The upscale value must be used with the width, height or dpr parameter to see the effects in the output image.
Enable Image Size Upscaling - Upscale the image to 2560px in width if the original is smaller than the requested output size.