Uniswap / Uniswap/interface

Crash report: `TypeError: Cannot read properties of undefined (reading 'split')`

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Dominant language
TypeScript
Stars
5.5k
Forks
5.4k
PR merge metrics
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Description

URL

https://app.uniswap.org/#/vote

Error

TypeError: Cannot read properties of undefined (reading 'split')

Stacktrace

TypeError: Cannot read properties of undefined (reading 'split')
    at https://app.uniswap.org/static/js/79.bf2f0de8.chunk.js:1:2908
    at Array.map (<anonymous>)
    at https://app.uniswap.org/static/js/79.bf2f0de8.chunk.js:1:2729
    at Array.map (<anonymous>)
    at https://app.uniswap.org/static/js/79.bf2f0de8.chunk.js:1:2169
    at Object.Pa [as useMemo] (https://app.uniswap.org/static/js/35.812921a6.chunk.js:2:2958082)
    at t.useMemo (https://app.uniswap.org/static/js/35.812921a6.chunk.js:2:2875929)
    at q (https://app.uniswap.org/static/js/79.bf2f0de8.chunk.js:1:1893)
    at K (https://app.uniswap.org/static/js/79.bf2f0de8.chunk.js:1:3654)
    at xt (https://app.uniswap.org/static/js/79.bf2f0de8.chunk.js:1:37720)

Device data

{
  "ua": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/101.0.4951.67 Safari/537.36",
  "browser": {
    "name": "Chrome",
    "version": "101.0.4951.67",
    "major": "101"
  },
  "engine": {
    "name": "Blink",
    "version": "101.0.4951.67"
  },
  "os": {
    "name": "Windows",
    "version": "10"
  },
  "device": {},
  "cpu": {
    "architecture": "amd64"
  }
}

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Open https://app.uniswap.org/#/vote and use the reported Chrome environment and stacktrace as the starting point for reproducing the crash. Trace the generated chunk locations back to the TypeScript source and identify the undefined value being split; done means the vote page loads without the exception and the failure is covered by a regression check.

Written by the indexing model from the issue text.

Assessment

Tech stack
typescript
Domain
frontend
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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