Closed Bug 1936410 Opened 10 months ago Closed 10 months ago

Long rendering delay on Yahoo Finance when selecting a stock's "All" history

Categories

(Core :: JavaScript Engine, defect, P3)

Product:
Core
Component:
JavaScript Engine
Version:
Firefox 133
Type:
defect

Tracking

()

Status:
RESOLVED WORKSFORME

People

(Reporter: thee.chicago.wolf, Unassigned)

References

(Blocks 1 open bug)

Details

Tested on FF v133.0.3 and Edge v131.0.2903.86.

Yahoo changed their individual stock page a month or two ago but I notice now that when one clicks the "All" history of a stock, it's takes upward of 25-30s before it renders the stock's history graph. Previously to Yahoo changing the page layout, this took a few seconds at most. Uploaded a perf profile here: https://share.firefox.dev/4ixEQ8P and it seems like a lot of time being spent in JavaScript. Doesn't seem to be specific to just FF as Edge took around 29 seconds to render the graph as well.

STR:

  1. Visit, for example, https://finance.yahoo.com/quote/AAPL/ and it shows the day's trading graph
  2. From the 1D 5D 6M YTD 1Y 5Y ALL menu links, click "All"

Expected result:

  1. Graph should render within a few seconds

Actual result:

  1. Graph takes 25-30 seconds to render.

Wow that profile is very bad.

However I cannot reproduce right now (my profile: https://share.firefox.dev/4gEmWzx); I suspect an upstream fix.

Can you still reproduce this?

Blocks: sm-js-perf
Severity: -- → S3
Flags: needinfo?(thee.chicago.wolf)
Priority: -- → P3

(In reply to Matthew Gaudet (he/him) [:mgaudet] from comment #1)

Wow that profile is very bad.

Indeed. The fact that it repros on Edge suggests it's likely something on Yahoo's side and not just FF.

However I cannot reproduce right now (my profile: https://share.firefox.dev/4gEmWzx); I suspect an upstream fix.

Can you still reproduce this?

I can repro on my office machine easily. I'd have to double check on my home PC. What would you like me to try?

Flags: needinfo?(thee.chicago.wolf)

And just today I tried this one my work PC and the issue isn't happening anymore. I'll make a reminder to try at home later tonight. If it works there, I'll close as WFM.

Well, it looks like Yahoo must have changed something on their back end because it takes about 1 second to render the "All" graph now even on my home PC. Closing WFM.

Status: NEW → RESOLVED
Closed: 10 months ago
Resolution: --- → WORKSFORME

Thank you very much for following up on this. Glad it was a Yahoo issue they have already fixed.

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