info.json
is requested for an image via IIIF, the existing thumbs are now returned as zoom levels. This causes the browser with the included tool for image display (openSeadragon) to request exactly these, so that the thumbnails can be passed through directly. This change brings with it an enormous acceleration of the loading times. For some images with longer loading times, for example, the time could be reduced from the original 2.4 seconds to only 0.2 seconds.