Since the alert is only showing up with ImageFormatter hijacking, I decided to look at PrettyLink hijacking (which never throws an error) and see what the differences were.
The function associated with PrettyLink hijacking allows for null/undefined values: includeURL = w.tiddler ? w.tiddler.getIncludeURL() : null, ... but the ImageFormatter hijacking function only allows for empty sets: includeURL = w.tiddler ? w.tiddler.getIncludeURL() : "", I'm updating that line in the ImageFormatter hijack function to match the one in the PrettyLink hijacking function to see if that does away with the mysterious alert. :) -- 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 tiddlywiki+unsubscr...@googlegroups.com. To post to this group, send email to tiddlywiki@googlegroups.com. Visit this group at http://groups.google.com/group/tiddlywiki. For more options, visit https://groups.google.com/groups/opt_out.
