Player won't not play a FLAC file without duration

[rock3m]

I have a Flac file which is saved after streaming. It misses the duration attribute. The AV player with Flac.js does not work for this file. I tried playing it locally with sox and Audacity. They also work with this file. I also tried to play using Chrome directly, and it worked fine. My suspicion is missing the duration. I'm attaching this file in a zip. Can someone help me take a look?
hello.flac.zip