1640098 - Instant evaluation continue to show previous values if a function is submitted to fast

Status: NEW

(DevTools :: Console, defect)

Description

[Alexandru Trif, QA [:atrif]]

Attachment: instant_eval.gif

Affected versions

• 78.0a1 (20200521093657)
• 77.0b9 (20200521224544)

Affected platforms

• macOS 10.12
• Windows 10x64
• Ubuntu 18.04

Steps to reproduce

1. Open Firefox with a new profile and web console.
2. Paste a random function and press enter.

Expected result

• No instant evaluation preview is shown after submitting the function.

Actual result

• Instant evaluation can be shown if the function is submitted to fast.

Regression range
Last good revision: 73dad4bd258511ddea0b6ad87c47f4a01b5c7a6b (2020-04-13)
First bad revision: 17e3c9ff2cad9711445a6c39df85925c8f347336 (2020-04-14)
Pushlog:
https://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=73dad4bd258511ddea0b6ad87c47f4a01b5c7a6b&tochange=17e3c9ff2cad9711445a6c39df85925c8f347336
Possible regressor: bug 1629798.

Notes

• Attached a screen recording.
• Note that the issue can be very hard to reproduce. Sometimes it takes a few functions to be submitted, sometimes it reproduces on the first try. If many attempts are failing to reproduce, restart the browser and try again.

Comment 1

[Pascal Chevrel:pascalc]

S3 and too late to fix for 77.