FileSystemFileHandle.createWriteable

[Xiphoseer]

Studio uses FileSystemFileHandle.createWritable in

sdo-tool/crates/sdo-web/src/lib.rs

Line 418 in 1e0339a

let w = JsFuture::from(r.create_writable())

which is not supported in Safari

See: https://bugs.webkit.org/show_bug.cgi?id=231706

[Xiphoseer]

There was a commit to WebKit in december 2024 that adds it, but that hasn't made it into Safari yet.

[Xiphoseer]

We could work around this by introducing a web worker and using the OPFS APIs related to that, specifically FileSystemFileHandle.createSyncAccessHandle, which has better support