Percy: Intermittent prompts showing up in Safari on iPhone snapshots

What to do

Check whether you use Percy Rendering infrastructure. Check your stack
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Confirm your retries, queues and scheduled jobs caught up after the 12h 19m it lasted.
Anything that failed between 2023-06-05 09:56 UTC and 2023-06-05 22:15 UTC may need a replay.
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investigatingJun 5, 2023, 9:56 AM UTC
We are noticing newer prompts in Safari on iPhone browser which are not covered by the fix we implemented in the last incident. We are currently investigating the issue.
provider
identifiedJun 5, 2023, 1:48 PM UTC
The issue has been identified and a fix is being implemented.
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monitoringJun 5, 2023, 9:12 PM UTC
A fix has been implemented and we are monitoring the results.
provider
monitoringJun 5, 2023, 9:23 PM UTC
We are continuing to monitor for any further issues.
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resolvedJun 5, 2023, 10:15 PM UTC
This incident has been resolved.
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postmortemJun 9, 2023, 1:50 PM UTC
Percy builds running on Safari on iPhone browser intermittently had prompts showing up causing unintended diffs. This issue first started occurring on 26th May and gradually became more frequent. The major impact on builds was observed between 30th May to 6th June. Although we started rolling out fixes for this issue by 30th May itself, due to the reactive nature of the fix some customers might have noticed these prompts till 6th June. We are sorry for any inconvenience caused due to this issue, if you still notice any such prompts, please reach out to support.
provider

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Is Percy still down?

No, this incident was resolved 2023-06-05 22:15 UTC. For Percy's live state, see https://down.guide/percy.

How long did it last?

12h 19m, from 2023-06-05 09:56 UTC to 2023-06-05 22:15 UTC, by the times Percy posted.

What was affected?

Percy named Rendering infrastructure.

What caused it?

Percy hasn't published a root cause. If it does, it shows here.

Where does this come from?

Percy's official status page, https://status.percy.io, quoted verbatim. down.guide's own probes, reports and social counts are labeled as ours.