Requesting concurrent OPFS file access in all supported web browsers

[brandonpayton]

Today, only Chromium-based browsers support concurrent access to files stored in OPFS. This makes it difficult to implement multiple PHP workers because each needs access to the same DB file.

I filed bugs for Firefox and a WebKit to support concurrent OPFS file access in the same way Chromium does, via the readwrite-unsafe mode argument to createSyncFileAccessHandle().

• https://bugzilla.mozilla.org/show_bug.cgi?id=1934754
• https://bugs.webkit.org/show_bug.cgi?id=283959

Let's use this issue to track the progress of those requests.

[brandonpayton]

For Firefox, there is this minor update:

This is a non-standard feature but there is a proposal and thanks to this bug, the process of defining a standards position has now been set in motion. Let's hope that it will be favorable.

No response for WebKit yet.

[brandonpayton]

There is also this WebKit/standards-positions issue that seems relevant:

"Multiple Readers and Writers in File System Access API"
WebKit/standards-positions#238