Crash report: `QuotaExceededError: The quota has been exceeded.`

URL

https://app.uniswap.org/#/swap?chain=mainnet

swap state

{
  "INPUT": {
    "currencyId": "ETH"
  },
  "OUTPUT": {
    "currencyId": null
  },
  "independentField": "INPUT",
  "typedValue": "",
  "recipient": null
}

Error

QuotaExceededError: The quota has been exceeded.

Stacktrace

setItem@[native code]
https://app.uniswap.org/static/js/main.355ff957.chunk.js:1:38177
Ls@https://app.uniswap.org/static/js/2.cdb10fed.chunk.js:2:2799549
https://app.uniswap.org/static/js/2.cdb10fed.chunk.js:2:2817328
ws@https://app.uniswap.org/static/js/2.cdb10fed.chunk.js:2:2790501
ws@[native code]
https://app.uniswap.org/static/js/2.cdb10fed.chunk.js:2:2740091
https://app.uniswap.org/static/js/2.cdb10fed.chunk.js:2:2817328
Yi@https://app.uniswap.org/static/js/2.cdb10fed.chunk.js:2:2740037
Ki@https://app.uniswap.org/static/js/2.cdb10fed.chunk.js:2:2739972
bs@https://app.uniswap.org/static/js/2.cdb10fed.chunk.js:2:2787975
Ca@https://app.uniswap.org/static/js/2.cdb10fed.chunk.js:2:2759625
Ca@[native code]
https://app.uniswap.org/static/js/2.cdb10fed.chunk.js:2:2670345
forEach@[native code]
r@https://app.uniswap.org/static/js/2.cdb10fed.chunk.js:2:2662570
https://app.uniswap.org/static/js/2.cdb10fed.chunk.js:2:2661797
https://app.uniswap.org/static/js/2.cdb10fed.chunk.js:2:2473324
c@https://app.uniswap.org/static/js/2.cdb10fed.chunk.js:2:2655941
https://app.uniswap.org/static/js/2.cdb10fed.chunk.js:2:2655726
a@https://app.uniswap.org/static/js/2.cdb10fed.chunk.js:2:2469358
promiseReactionJob@[native code]

Device data

{
  "ua": "Mozilla/5.0 (iPhone; CPU iPhone OS 14_4_2 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/15E148",
  "browser": {
    "name": "WebKit",
    "version": "605.1.15",
    "major": "605"
  },
  "engine": {
    "name": "WebKit",
    "version": "605.1.15"
  },
  "os": {
    "name": "iOS",
    "version": "14.4.2"
  },
  "device": {
    "vendor": "Apple",
    "model": "iPhone",
    "type": "mobile"
  },
  "cpu": {}
}

Start by reproducing the crash at the reported mainnet swap URL on iOS 14.4.2 WebKit, using the supplied swap state. Trace the minified stack from the native setItem call back to its source in the TypeScript application. Done means the swap page no longer crashes when storage quota is exceeded, with the relevant behavior verified on the reported environment.