Crash report: `Error: Unsupported chain ID`

URL

https://app.uniswap.org/#/pool/40667

Error

Error: Unsupported chain ID

Stacktrace

Error: Unsupported chain ID
    at r.get (https://app.uniswap.org/static/js/main.15c75a7e.chunk.js:1:744236)
    at sz (https://app.uniswap.org/static/js/main.15c75a7e.chunk.js:1:580676)
    at Sa (https://app.uniswap.org/static/js/7.66ad70ac.chunk.js:2:3693165)
    at Pf (https://app.uniswap.org/static/js/7.66ad70ac.chunk.js:2:3704853)
    at Ss (https://app.uniswap.org/static/js/7.66ad70ac.chunk.js:2:3751260)
    at gu (https://app.uniswap.org/static/js/7.66ad70ac.chunk.js:2:3739313)
    at mu (https://app.uniswap.org/static/js/7.66ad70ac.chunk.js:2:3739241)
    at vu (https://app.uniswap.org/static/js/7.66ad70ac.chunk.js:2:3739104)
    at ou (https://app.uniswap.org/static/js/7.66ad70ac.chunk.js:2:3735884)
    at su (https://app.uniswap.org/static/js/7.66ad70ac.chunk.js:2:3736275)

Device data

{
  "ua": "Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/107.0.0.0 Safari/537.36",
  "browser": {
    "name": "Chrome",
    "version": "107.0.0.0",
    "major": "107"
  },
  "engine": {
    "name": "Blink",
    "version": "107.0.0.0"
  },
  "os": {
    "name": "Windows",
    "version": "7"
  },
  "device": {},
  "cpu": {
    "architecture": "amd64"
  }
}

Reproduce the crash at https://app.uniswap.org/#/pool/40667 and use the supplied minified stack trace as the starting evidence; first identify the chain-ID lookup involved in pool 40667. Done means the pool URL no longer crashes on the reported environment and the unsupported-chain case has a verified outcome.