Thank you so much for replying.
I’ve just checked again on my Quest Browser, the WebXR worked fine.
And then, I’ve checked Meta Quest Browser’s version, and found it different from yesterday’s.
| checked timing | version |
|---|---|
| yesterday | 33.0.0.68.29.592499619 |
| now | 33.0.0.121.29.594097662 |
It seems to be updated and the problem was fixed.
I’m sorry for troubling you!