Fix geotif file loading

[gjmooney]

Description

Fixes #869

Checklist

• PR has a descriptive title and content.
• PR description contains references to any issues the PR resolves, e.g. Resolves #XXX.
• PR has one of the labels: documentation, bug, enhancement, feature, maintenance
• Checks are passing.
  Failing lint checks can be resolved with:
  • pre-commit run --all-files
  • jlpm run lint

---

📚 Documentation preview: https://jupytergis--884.org.readthedocs.build/en/884/
💡 JupyterLite preview: https://jupytergis--884.org.readthedocs.build/en/884/lite

[github-actions]

👈 Launch a Binder on branch gjmooney/jupytergis/fix_tif_loading

[github-actions]

Integration tests report: appsharing.space

[MMesch]

Not sure whether it's related to this PR but when I open with the lite demo deployment (in a new private tab) the geotiff-example.tiff in a new qgis project clicking right click on new layer and then open file from server, I get after quite a long loading time this slightly weird image:

[MMesch]

Seems it's to be expected. It loads really slowly but that's a different issue I think.

[mfisher87]

We could use an architecture documentation page for this! LGTM and seems to work fine!

Perhaps the slowness is because this GeoTIFF file only has two levels of overviews.

Check release failure is resolved by #888 !

[mfisher87]

Hey @gjmooney I think part of the performance problem is we used to cache the file's metadata in indexeddb, but we no longer do as of this change: gjmooney@89fd8fb#diff-f155b38648f9ab1ea37e6115e82cd3bd63c04a130407dc5dc88540dbb11da397L473-L487

What's the reason for the removal, and can it be restored?

[gjmooney]

What's the reason for the removal, and can it be restored?

Good catch! I don't recall a reason 😆 I opened #891 to restore it.