Investigate igv.js variant track does not update upon chromosome changes

[victorskl]

Context:

• As of igv.js 2.10.4; upon chromosome changes, it does not seem to query (search) to backend API.
• It only work upon the first time loading a track. No event fire from igv.js to API, then after.
• This may be (OR MAY BE NOT) upstream issue. I can't confirm yet — need more time to debug.

Issue:

• Usability/UX will be quirky

Reproduce:

• Check in current PROD or DEV Portal or even in local dev setup
• Load variant VCF track
• Click chromosome 1
• Then switch to chromosome 12

Expectation:

• It should work like this demo: https://igv.org/web/release/2.10.5/examples/variant-colors.html

Actions:

• Investigate and fix

[jrobinso]

Hi @victorskl I realize this is old, but its still open, open an issue at igv.js with a reproducible test case and I will look into it. If the backend is htsget I suspect its something specific to that reader.