Demo

Auto-enabled on page load, then re-enabled 2s later

Starting (but not finishing) a drag within that 2s did cause an error

Top level 1
Nesting
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Other Nesting
Top level 2
Nesting
dragon
Bearded dragon lizard by Gary M. Stolz, U.S. Fish and Wildlife Service Image has been cropped
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Other Nesting
Top level 3
Nesting
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Other Nesting
Top level 4
Top level 5
Nesting
Even More
Other Nesting
Top level 6
Nesting
Top level 7
Nesting
Even More
Other Nesting
Top level 8
Nesting
Even More
Other Nesting
Top level 9
Nesting
Even More
Other Nesting