https://caniuse.com/?search=ciu/wf-origin-private-file-system
"ciu/wf-origin-private-file-system" | Can I use... Support tables for HTML5, CSS3, etc
origin private file system
https://developer.mozilla.org/en-US/docs/Web/API/File_System_API/Origin_private_file_system
Origin private file system - Web APIs | MDN
The origin private file system (OPFS) is a storage endpoint provided as part of the File System API, which is private to the origin of the page and not visible...
origin private file systemweb apismdn
https://web.dev/articles/origin-private-file-system?authuser=9
The origin private file system | Articles | web.dev
origin private file systemarticles webdev