236616 2022-02-14 15:43:06 -0800 Data URI favicon doesn't seem to work 2025-06-18 00:47:21 -0700 1 1 1 Unclassified WebKit Images Safari 15 Mac (Intel) macOS 12 NEW InRadar P2 Normal --- 1 eric.case webkit-unassigned achristensen adam_marcus beidson eric.case jacob karlcow mjs sabouhallawa webkit-bug-importer oldest_to_newest 1841443 0 eric.case 2022-02-14 15:43:06 -0800 I've documented my attempts to get this working in this repo: https://github.com/case/safari-favicons-base64 I tried the suggestion in this Stack Overflow post: https://stackoverflow.com/a/5199989/890466 -- which suggests that this worked in Mac Safari back in 2011. Perhaps something related has changed or broken since then? This snippet works fine in latest (as of filing this bug report) Mac Chrome and Firefox: <link rel="icon" href="data:image/png;base64,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" /> But for some reason I haven't been able to get it working in Safari. I also have a related Twitter thread about this with @othermaciej here: https://twitter.com/othermaciej/status/1493336261901238272?s=21 1841461 1 webkit-bug-importer 2022-02-14 16:05:52 -0800 <rdar://problem/88933938> 1844092 2 mjs 2022-02-20 17:39:21 -0800 On Twitter it was suggested this may be a Safari 15.3 regression. 1907869 3 adam_marcus 2022-10-24 13:33:42 -0700 Any updates on this? 2057458 4 jacob 2024-09-03 22:03:05 -0700 Hi all, is this supposed to work now? I'm still seeing it not working on macOS 14.6.1 / Safari 17.6, but not sure if I'm doing something wrong... 2057459 5 jacob 2024-09-03 22:03:28 -0700 (Note: I'm trying to use a SVG image in a data: uri)