I suspect that it relates to "https" and security. Looking at the source code, it appears to fall back to favicon.ico. So possibly you could try putting a traditional favicon.ico in the same directory as your TW file.
Good luck! Mark On Thursday, December 6, 2018 at 12:31:26 AM UTC-8, oleghbond wrote: > > Thanks Mark for your thought. Just to mention - I tried several raster > image formats: ico, jpg, png, gif but without success. And again let me > draw your attention that when I build index.html locally - everything works > fine under Chrome at my comp. The latter means that all these ##3-6 work > properly for tiddlywikis built locally. > > середа, 5 грудня 2018 р. 20:37:02 UTC+2 користувач Mark S. написав: >> >> #1 and #2 have "real", embedded images. #3 - #6 reference icons on the >> server. It appears that either TW or your browser won't use those >> referenced images. If it used to work, then I would guess that changes to >> browser security are making the difference. >> >> Good luck! >> -- Mark >> >> On Wednesday, December 5, 2018 at 9:48:30 AM UTC-8, oleghbond wrote: >>> >>> I've been breeding my TW5's at a sort of farm on the Github platform ( >>> github.com/protw) using Github Pages for building and publishing ( >>> protw.github.io). This work was inspired by by original work of Danielo >>> Rodríguez <https://github.com/danielo515/TW5-auto-publish2gh-pages>. >>> >>> So far I've succeeded to grow up 6 wikis: >>> >>> 1. proTW — Tiddlywiki selfplatform - Making senses >>> <https://protw.github.io/> >>> 2. About Tiddlywiki — Selfmanual <https://protw.github.io/tw5/> >>> 3. RDPDET — Radon dosimetry and detection >>> <https://protw.github.io/rdpdet/> >>> 4. PROTWECO — Environmental matters <https://protw.github.io/eco/> >>> 5. UKRLANG — Ukrainian language in the modern world >>> <https://protw.github.io/ukr/> >>> 6. OLEGHBOND — Olegh Bondarenko, resume >>> <https://protw.github.io/oleghbond/> >>> >>> This year I noticed a certain undesired effect: after typical regular >>> update of wikis some of them (##3-6) discontinued displaying a favicon at >>> protw.github.io. At the same time a favicon is still well being >>> displying at my local computer where I build the wikis under Node.js. >>> >>> I've been experimenting a lot with favicon formats, dimensions, color >>> depth but has not reached understanding the effect cause. >>> >>> I'm suspisous on influence of the two latest TW versions 5.1.16 and >>> 5.1.17 but without proofs. >>> >>> I'm not rather alone having this inconvinience. >>> >>> It would be great if somebody would have already solved the issue. >>> >> -- 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 post to this group, send email to [email protected]. 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/a2371c6a-c805-4341-b30e-c56e087e40b2%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.

