I continued to look for a solution, found something not really usable, but maybe it can help someone understand...
If I modify my *dummy.html* file by adding <!-- saved from url=(0021)http://tiddlywiki.com -->, the iframe shows up using IE / Edge (after restarting the browser). *dummy.html* is then: <!DOCTYPE html> <!-- saved from url=(0021)http://tiddlywiki.com --> <html> <head> <meta content="text/html; charset=UTF-8" http-equiv="content-type"> <title>Test</title> </head> <body> <p>Test</p> </body> </html> I also have no problem showing iframes of external webpages using IE / Edge. And I also have no problem displaying iframes in normal html files (not TiddlyWiki). Note that I have this behavior on two different computers, with both a heavily modified TiddlyWiki as well as with the newly downloaded empty TiddlyWiki. -- 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 https://groups.google.com/group/tiddlywiki. To view this discussion on the web visit https://groups.google.com/d/msgid/tiddlywiki/976af103-7266-446c-b7c1-ca1cc31916c0%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
