image-url does not work in command-line pyret

[schanzer]

The following code...

include image
image-url("https://bootstrapworld.org/images/icon.png")

Generates the following error...

The run ended in error:
Abstraction breaking: Uncaught JavaScript error:
TypeError: rawImage.setAttribute is not a function
    at Pause.resumer (/Users/schanzer/Documents/Bootstrap/Development/curriculum/lessons/Data-Science/advanced-visualizations/langs/en-us/authoring/.pyret/generate-pyret-images.jarr:185164:20)
    at Immediate.iter [as _onImmediate] (/Users/schanzer/Documents/Bootstrap/Development/curriculum/lessons/Data-Science/advanced-visualizations/langs/en-us/authoring/.pyret/generate-pyret-images.jarr:163689:41)
    at process.processImmediate (node:internal/timers:505:21)Stack trace:
TypeError: rawImage.setAttribute is not a function
    at Pause.resumer (/Users/schanzer/Documents/Bootstrap/Development/curriculum/lessons/Data-Science/advanced-visualizations/langs/en-us/authoring/.pyret/generate-pyret-images.jarr:185164:20)
    at Immediate.iter [as _onImmediate] (/Users/schanzer/Documents/Bootstrap/Development/curriculum/lessons/Data-Science/advanced-visualizations/langs/en-us/authoring/.pyret/generate-pyret-images.jarr:163689:41)
    at process.processImmediate (node:internal/timers:505:21)

If I had to guess, it's that this line is getting some facsimile of a DOM ImageElement that's designed to work on node. setAttribute is definitely a method of browser objects, so it wouldn't surprise me if it's not properly implemented in node-canvas.

[schanzer]

We should be able to change the line to avoid setAttribute using rawImage.crossOrigin = "anonymous";