image api 3.0: image urls in download section do not take maximum dimensions into account

[nicolasfranck]

UV version:

[email protected]

I'm submitting a:

• bug report => please fork one of these codesandbox examples with a repro of your issue and include a link to it below
• feature request => please use the user stories repo
• support request => Please do not submit support requests here, use stackoverflow

Current behavior:

When you supply a version 3 IIIF manifest with a reference to a image service of version 2, that applies maximum dimensions (maxWidth and maxHeight), then these maxima are not used in the download urls for current views.

Apparently this is a problem in manifesto (IIIF-Commons/manifesto#132), that is not updated
to work with alternate location of properties maxWidth and maxHeight.

On short notice you can read canvas.externalResource.data and fetch the maxima yourself of course from the appropriate location.

Steps to reproduce:

• Go to https://universalviewer.dev
• Supply https://heaney0.ugent.be/IIIF/v3/manifests/viaa%3Ac53dz34h1j
• Click on the download button in the left corner and then on "current view". The resulting jpeg image is scaled incorrectly because it applies maxima. Same goes for "Whole image" by the way where canvas.getMaxDimensions() is also used.