Closed
Description
When useing TamperMonkey or GreaseMonkey with less.js as a @require resource, sometimes there will be an error.
I trace the code found a small problem.
At https://github.com/less/less.js/blob/master/packages/less/src/less-browser/utils.js
function addDataAttrs param tag may be null, then the script will exec failed.
A short if may fix this, will you please add the code to check if tag is null