met museum images

[hamidzr]

loading cross-origin images into canvas makes it tainted therefore blocks usage of costume loader which image loading for met-museum relies on.

costume.isTainted() https://github.com/NetsBlox/NetsBlox/pull/2400

metTester.zip

[hamidzr]

reproduce:

• after the canvas is tainted we can write to the canvas but not read it:
  • isTouchin() would throw for many blocks
  • the bucket tool in the painter
• images loaded through this method won't get saved (expected)

There is an option of hosting the images ourselves.

[hamidzr]

WIP in https://github.com/NetsBlox/NetsBlox/tree/9-met-images blocked by tainted canvas issue.