CA1852:  Type can be sealed because it has no subtypes in its containing assembly and is not externally visible

dotnet_diagnostic.CA1852.severity = suggestion

Refused to connect to ws: because it violates the Content Security Policy directive

{
   "csp-report":{
      "document-uri":"http://localhost:5051/",
      "referrer":"",
      "violated-directive":"connect-src",
      "effective-directive":"connect-src",
      "original-policy":"default-src 'self' blob:; style-src 'self' 'unsafe-inline'; script-src 'self' 'unsafe-inline' 'unsafe-eval' ; font-src 'self'; img-src 'self' data: blob:; connect-src 'self'; media-src 'self'; object-src 'self' blob:; report-uri /api/CspReport/Log",
      "disposition":"enforce",
      "blocked-uri":"wss://localhost:52837",
      "line-number":234,
      "column-number":25,
      "source-file":"http://localhost:5051/_framework/aspnetcore-browser-refresh.js",
      "status-code":200,
      "script-sample":""
   }
}

connect-src 'self' wss://localhost:*