Trace Viewer for Debugging
Use Playwright traces to replay what happened instead of guessing from a red test.
What you'll learn
- Understand what a trace captures.
- Use traces to inspect steps, snapshots, and network events.
- Debug failures with evidence instead of assumptions.
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Trace Viewer for Debugging
Use Playwright traces to replay what happened instead of guessing from a red test.
Big Picture
One small picture can make this idea easier to hold.
Guess from logs
- Possible, but slow. Easy to miss the order of events.
Replay with a trace
- See steps, DOM snapshots, network calls, and timing in one place.
VerdictUse Playwright traces to replay what happened instead of guessing from a red test.
How It Moves
Short steps make the flow easier to see.
Learn the idea
Read the key rule.
Try one example
Use a small real case.
Check the result
See what should happen.
Repeat with care
Try one more case.
Step By Step
This is the same idea, stretched across time.
- 1
Start small
Read one simple example.
- 2
Apply the idea
Use it on one real case.
- 3
Check the result
See what changed.
- 4
Keep the lesson
Use it again next time.
One Small Model
Think of this like a tiny card you can keep in your pocket.
Lesson card
4 fieldsQuick Check
What makes Trace Viewer so useful during debugging?
Map It
One more picture helps you see where this lesson matters most.
Where this helps
Simple use
One easy case
Best fit
Common day-to-day QA work
Edge case
A tricky path
High risk
A bug that hurts users