That seems like a bug. It's not just the pre-release. It breaks in 5.1.21 as well.
On Tuesday, March 17, 2020 at 11:42:05 AM UTC-7, Mohammad wrote: > > > - In https://tiddlywiki.com/prerelease/ > - Create a new tiddler > - Put the below wikitext inside its text field > > > <a href={{!!url}} target="_blank"> > <$list filter="[enlist{!!keywords}join[, ]]" variable=item><$text > text=<<item>> /></$list> > </a> > > > - Save. > > Why Internal JavaScript Error is appeared? > > If you add url and keywords field but keep them empty, the red popup error > window appears again! > -- You received this message because you are subscribed to the Google Groups "TiddlyWiki" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/tiddlywiki/b9360033-0e8e-4e50-b4e8-741384e58767%40googlegroups.com.

