Yes, such "offline bookmarked dataURI applications" are great, underappreciated and ancient things. Sadly, current trend in modern browsers is to suppress them

Yes, such "offline bookmarked dataURI applications" are great, underappreciated and ancient things. Sadly, current trend in modern browsers is to suppress them in sake of security, because in the past some crooks misused them them. Currently you cannot even link to them like you could in the past; anything other than direct navigation from bookmark or URLbar results in better case in blank screen, in worse is silently blocked. For example in the past you could redirect to them, or make datauri editor that encoded itself into another datauri, or both [1], but now you can not [2]. [0] Check out for example this HTML / SVG sketchbook: https://gist.github.com/myfonj/c8ce74bf549e19600026ce9022388df8 https://gist.github.com/myfonj/c8ce74bf549e19600026ce9022388... [1] http://tinyurl.com/selcoditor http://tinyurl.com/selcoditor (see network log) [2] https://blog.mozilla.org/security/2017/11/27/blocking-top-level-navigations-data-urls-firefox-59/ https://blog.mozilla.org/security/2017/11/27/blocking-top-le...