Khan Exercise is failing

[lsolesen]

Observed behavior

I am not aware where to file issues for problems with channels. If this is not the correct place, then please advice.

One of the Khan Exercises is not working.

"Represent multiplication on the number line"

When you input a number in the input field, it complains that you did not input the number:

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Errors and logs

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Expected behavior

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User-facing consequences

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Steps to reproduce

1. Go to the Exercise.
2. Fill in the input fields (does not apply to the single and multiple choice). …

Context

• Kolibri version: 0.15.12
• Operating system: Windows
• Browser: Tried Edge and Chrome …