Another example is the sandbox we have built for Peergos[1] for user apps Combination of double iframe, service worker and writable streams. Not without issue d

Another example is the sandbox we have built for Peergos[1] for user apps Combination of double iframe, service worker and writable streams. Not without issue due to browser behaviour. Chrome (...annoyances), Firefox (...feature not necessarily available), Safari (...blocking bugs) [1] https://peergos.org/posts/a-better-web https://peergos.org/posts/a-better-web