erroropenweb-uijavascript

TypeError: n is not a function

dist/bundle.min.js#t

Events1
First seen16d ago2026-08-07 17:33:25 UTC
Last seen16d ago2026-08-07 17:33:25 UTC
Releases2026.8.1
minified

The frames look minified. Minified names change on every build, so grouping them would open a new group per deploy; the normalized message was used instead.

Frequency

24 hours7 days30 days
Events per hour, from the rollups0 in this window · peak 1
16:00
 
 
 
20:00
 
 
 
00:00
 
 
 
04:00
 
 
 
08:00
 
 
 
12:00
 
 
 
Table view
Bucket (UTC)Events
2026-08-22 16:00:000
2026-08-22 17:00:000
2026-08-22 18:00:000
2026-08-22 19:00:000
2026-08-22 20:00:000
2026-08-22 21:00:000
2026-08-22 22:00:000
2026-08-22 23:00:000
2026-08-23 00:00:000
2026-08-23 01:00:000
2026-08-23 02:00:000
2026-08-23 03:00:000
2026-08-23 04:00:000
2026-08-23 05:00:000
2026-08-23 06:00:000
2026-08-23 07:00:000
2026-08-23 08:00:000
2026-08-23 09:00:000
2026-08-23 10:00:000
2026-08-23 11:00:000
2026-08-23 12:00:000
2026-08-23 13:00:000
2026-08-23 14:00:000
2026-08-23 15:00:000

How this group was decided

Every step below is a pure function of the event. The same event always produces the same group.

  1. 1 · Parse the stack trace

    4 frames parsed, 4 belong to the application. Only those decide the group — the same bug reaches the runtime through different framework paths depending on the request.

    • in-appdist/bundle.min.js.tdist/bundle.min.js:1
    • in-appdist/bundle.min.js.ndist/bundle.min.js:1
    • in-appdist/bundle.min.js.edist/bundle.min.js:1
    • in-appdist/bundle.min.js.odist/bundle.min.js:1

  2. 2 · Build the fingerprint input

    Line numbers are dropped so that editing a line above the throw site does not open a new group. Values inside the message are replaced with placeholders.

    v1
platform=javascript
service=web-ui
type=TypeError
message=n is not a function
degraded=minified

  3. 3 · Hash it

    SHA-256 of the text above, truncated to 128 bits. The version is part of the group key: a future algorithm opens new groups rather than rewriting these.

    Fingerprint
    8ff254a10e282c04a66d9a1808c738bb
    Algorithm version
    v1

Similar groups

Trigram similarity computed by Postgres against a GIN index. It catches what a fingerprint cannot — the same fault one refactor away from an existing group. No model is involved.

Nothing above the 0.3 similarity threshold.