spz, sog, or sogzip cannot be displayed or run on iOS 16.2.

[lost-an]

I'm unable to view results on this device, including websites and examples...

I attempted to load an SPZ file and traced the issue to where it halts at the section indicated by the arrow—it neither proceeds into the then block nor enters the catch block.

Upon investigation, it was determined that when using the SPZ format, the WASM Worker silently crashes during SPZ file decoding: The Worker is created successfully but never responds to the decodeSpz operation, triggering no error events. This causes “await this.packedSplats.initialized” to hang indefinitely.The application becomes completely unresponsive with no error messages displayed. using the ply or splat formats displays content normally.

later, it was discovered that SOG files also failed to display.

Finally, I tried using the ply, splat, and ksplat formats, which loaded and displayed correctly.

——

I think It may be due to the DecompressionStream API.. but how should polyfills be injected in a worker environment😭...

[dmarcos]

iOS 16.2 is from 2022 it there's an easy fix we can address it. If it's missing Web APIs or WebKit limitations might be tougher.