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Info
titleCanvas Dimensions

As of 7.2, the canvas dimension options (iiif.canvas.default-width and iiif.canvas.default-height) are updated with additional behaviors.

  • If you do not provide your own default dimensions in iiif.cfg, DSpace will attempt to optimize canvas dimensions when dimension metadata is missing from the first bitstream in the item. This will often produce more accurate viewer layouts, but note that it is not sufficient to assure accurate layouts in all cases. 
  • If you decide to add your own default dimensions in iiif.cfg file your dimensions are used for every bitstream that lacks dimension metadata.
  • You may also set both default dimensions in iiif.cfg to the value -1. In this case, DSpace creates accurate default dimensions for every bitstream that lacks dimension metadata. Note that this impacts performance.

It is recommended that width and height metadata be added to every image bitstream Item, Bundle, or Bitstream metadata to assure accurate layout and top performance. Default dimension configurations are intended to improve the user experience when dimension metadata has not yet been added to bitstreams.

CORS Configuration

By default, the DSpace IIIF backend is configured to accept requests only from the Angular client origin. To facilitate the repository interoperability that IIIF promises, you can configure additional CORS origins using the iiif.cors.allowed-origins property defined in iiif.cfg. Currently, DSpace does not support the "*" wildcard but you are free to add multiple, comma-separated origins to the list.

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