Really? Huh. Yes, I dragged both the macro and the filter into a blank wiki freshly downloaded from
tiddlywiki.com. I tried that one in chrome, and tried the other in nwjs. I wonder what factors exist outside that setup. Could there be interference from outside the file? None of my chrome plugins are active in the webkit view of nwjs, so I would doubt that... If try this again fresh and upload it to dropbox, would you be willing to open the file to see if it works?