Crash report: `TypeError: Cannot read properties of undefined (reading 'circleLogoUrl')`
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Description
URL
https://app.uniswap.org/#/tokens/ethereum_goerli
Error
TypeError: Cannot read properties of undefined (reading 'circleLogoUrl')
Console
Access to fetch at 'https://rinkeby.infura.io/v3/099fc58e0de9451d80b18d7c74caa7c1' from origin 'https://app.uniswap.org' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource. If an opaque response serves your needs, set the request's mode to 'no-cors' to fetch the resource with CORS disabled.
TypeError: Cannot read properties of undefined (reading 'circleLogoUrl')
at TokenRow.tsx:486:54
at Sa (react-dom.production.min.js:167:137)
at Of (react-dom.production.min.js:193:57)
at Ss (react-dom.production.min.js:294:275)
at gu (react-dom.production.min.js:280:389)
at mu (react-dom.production.min.js:280:320)
at vu (react-dom.production.min.js:280:180)
at ou (react-dom.production.min.js:271:88)
at iu (react-dom.production.min.js:268:429)
at O (scheduler.production.min.js:13:203)
Stacktrace
TypeError: Cannot read properties of undefined (reading 'circleLogoUrl')
at https://app.uniswap.org/static/js/main.3e62ed90.chunk.js:1:783554
at Sa (https://app.uniswap.org/static/js/9.b5edc1bf.chunk.js:2:3689613)
at Of (https://app.uniswap.org/static/js/9.b5edc1bf.chunk.js:2:3699723)
at Ss (https://app.uniswap.org/static/js/9.b5edc1bf.chunk.js:2:3748888)
at gu (https://app.uniswap.org/static/js/9.b5edc1bf.chunk.js:2:3735761)
at mu (https://app.uniswap.org/static/js/9.b5edc1bf.chunk.js:2:3735689)
at vu (https://app.uniswap.org/static/js/9.b5edc1bf.chunk.js:2:3735552)
at ou (https://app.uniswap.org/static/js/9.b5edc1bf.chunk.js:2:3732332)
at iu (https://app.uniswap.org/static/js/9.b5edc1bf.chunk.js:2:3730883)
at O (https://app.uniswap.org/static/js/9.b5edc1bf.chunk.js:2:3757463)
Device data
{
"ua": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/106.0.0.0 Safari/537.36",
"browser": {
"name": "Chrome",
"version": "106.0.0.0",
"major": "106"
},
"engine": {
"name": "Blink",
"version": "106.0.0.0"
},
"os": {
"name": "Windows",
"version": "10"
},
"device": {},
"cpu": {
"architecture": "amd64"
}
}

Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Reproduce the crash at the provided Uniswap Goerli URL and inspect TokenRow.tsx around line 486, where circleLogoUrl is read. Check how the CORS failure from rinkeby.infura.io leaves the token data undefined; done means the token page no longer crashes when that data is unavailable.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- react, typescript
- Domain
- blockchain, frontend
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 35/100