Labs / Archive note · Updated 2026-09-11

What browser-level QA found that green tests missed

A passing build is not a passing check.

In useRunning in our own work and in client work. Delivered through Lehvel engagements, not as self-serve software.

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What we asked and what we found

Every entry answers the same eight questions, in this order.

Question

Why did Sales Desk pass its automated tests and its build, and still fail in a rep's hand?

Why it matters

The tests measured the code. The rep measured the product. Layout, tap targets and how a page fits a phone screen are not in an automated test.

State

In use Running in our own work and in client work. Delivered through Lehvel engagements, not as self-serve software.

What we built or tested

  • A check that opens the pages as a phone would, at real phone widths (360 to 430 pixels), run before release beside the tests.

Evidence

Finding
Defects surfaced only in rendered mobile QA, after green unit tests and a green build

What we learned

  • Name the check that would catch the failure you care about, then run that one.
  • Our team judges on an iPhone. So does the customer.

Limitations

  • A QA script proves what it looked at. It does not prove the pages it did not open.

What changes next

Run the same phone-width check on every public page in this redesign.
Failed tests are published as results. A state on this page describes today, not plans.

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