Looks like something else has changed between 4.0 and 4.2

[bdgeorge]

Testing the patch from the earlier issue for 4.0 as well as the forked version for 4.0 I've noticed another problem has crept in. The edit function fails on:

var frame, shortcode = wp.shortcode.next( 'thing', data ).shortcode;

The data variable is undefined so no shortcode is found.

[towfiqi]

Getting the same error here with 4.2.2

[kosso]

Same on 4.8 data is undefined in the edit function .