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

[sentry-io]

Similar to ticket #1841

Sentry Issue: GOVTOOL-FRONTEND-AR

TypeError: Cannot read properties of undefined (reading 'length')
  at Cq4 (/assets/index-EyW2gk9t.js:493:1983)
  at Mk0 (/assets/index-EyW2gk9t.js:38:18591)
  at qx0 (/assets/index-EyW2gk9t.js:40:47545)
  at Jx0 (/assets/index-EyW2gk9t.js:40:42961)
  at r90 (/assets/index-EyW2gk9t.js:40:42885)
...
(5 additional frame(s) were not displayed)

Sentry Issue: GOVTOOL-BACKEND-18

Exception Data.Text.Internal.Fusion.Common.tail: Internal error
CallStack (from HasCallStack):
  error, called at libraries/text/src/Data/Text/Internal/Fusion/Common.hs:944:24 in text-1.2.5.0:Data.Text.Internal.Fusion.Common while handling request Request {requestMethod = "GET", httpVersion = HTTP/1.1, rawPathInfo = "/proposal/get/601e3a415a046798844765b001c6135182b6ff32571d110640980ad52df89fe4%23", rawQueryString = "?drepId=", requestHeaders = [("Host","dev-sanchonet.govtool.byron.network"),("User-Agent","Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36"),("Accept","application/json, text/plain, */*"),("Accept-Encoding","gzip, deflate, br, zstd"),("Accept-Language","en,en-GB;q=0.9,en-US;q=0.8"),("Authorization","Basic Z292dG9vbDpBOEZ4RE1ud0dvY0RlS1FS"),("Cookie","_ga=GA1.1.1789033277.1724837231; ajs_anonymous_id=%2295851626-6b6d-42ce-a52b-0dda5afa3b62%22; _pk_id.1.444d=e800422ca3c50774.1732858397.; _ga_HEZ7H5YRZC=GS1.1.1733987163.103.1.1733989164.0.0.0"),("Priority","u=1, i"),("Referer","https://dev-sanchonet.govtool.byron.network/governance_actions/601e3a415a046798844765b001c6135182b6ff32571d110640980ad52df89fe4"),("Sec-Ch-Ua","\"Google Chrome\";v=\"131\", \"Chromium\";v=\"131\", \"Not_A Brand\";v=\"24\""),("Sec-Ch-Ua-Mobile","?0"),("Sec-Ch-Ua-Platform","\"Linux\""),("Sec-Fetch-Dest","empty"),("Sec-Fetch-Mode","cors"),("Sec-Fetch-Site","same-origin"),("X-Forwarded-For","103.163.183.66"),("X-Forwarded-Host","dev-sanchonet.govtool.byron.network"),("X-Forwarded-Port","443"),("X-Forwarded-Prefix","/api"),("X-Forwarded-Proto","https"),("X-Forwarded-Server","1bc69d9655d0"),("X-Real-Ip","103.163.183.66")], isSecure = False, remoteHost = 172.20.0.3:34648, pathInfo = ["proposal","get","601e3a415a046798844765b001c6135182b6ff32571d110640980ad52df89fe4#"], queryString = [("drepId",Just "")], requestBody = <IO ByteString>, vault = <Vault>, requestBodyLength = KnownLength 0, requestHeaderHost = Just "dev-sanchonet.govtool.byron.network", requestHeaderRange = Nothing}

Steps to reproduce

Disconnected state

1. Navigate to https://dev-sanchonet.govtool.byron.network/governance_actions/601e3a415a046798844765b001c6135182b6ff32571d110640980ad52df89fe4
2. Automatically redirect to internal server error page

Connected State

1. Navigate to https://dev-sanchonet.govtool.byron.network/connected/governance_actions/601e3a415a046798844765b001c6135182b6ff32571d110640980ad52df89fe4
2. Click on parameters tab
3. Observe the blank screen and above error on console