Refused to load _framework/aspnetcore-browser-refresh.js due to CSP #33068
Description
I'm working on .net 5 blazor wasm project. I recently updated my Visual Studio 2019 to version 16.10.0. All of a sudden I started getting an error message in my browser (Google Chrome) console as shown below:
Refused to load the script
'https://localhost:44340/_framework/aspnetcore-browser-refresh.js'
because it violates the following Content Security Policy directive:
"script-src 'sha256-fa5rxHhZ799izGRP38+h4ud5QXNT0SFaFlh4eqDumBI='".
Note that 'script-src-elem' was not explicitly set, so 'script-src' is
used as a fallback.
I don't have _framework/aspnetcore-browser-refresh.js added in my index.html. Here is the scripts and styles declaration in my index.html
styles declared inside <head> in index.html:
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no" />
<title>App</title>
<base href="/" />
<link href="css/site.css" rel="stylesheet" />
<link href="Web.styles.css" rel="stylesheet">
<link href="_content/BlazorDateRangePicker/daterangepicker.min.css" rel="stylesheet" />
<link href="manifest.json" rel="manifest" />
<link rel="apple-touch-icon" sizes="512x512" href="icon-512.png" />
</head>scripts in index.html:
<script src="_content/Microsoft.AspNetCore.Components.WebAssembly.Authentication/AuthenticationService.js"></script>
<script src="_framework/blazor.webassembly.js"></script>
<script src="js/Chart.js"></script>
<script src="js/print.js"></script>
<script src="js/pdf.js"></script>
<script src="_content/BlazorDateRangePicker/clickAndPositionHandler.js"></script>
<script src="js/blazorInterop.js"></script>
<script>navigator.serviceWorker.register('service-worker.js');</script>But when I launch the app via visual studio, from the browser I can see that _framework/aspnetcore-browser-refresh.js gets appended to scripts section in my index.html. Here is the screen print.
This is anything related to my configuration error? or I need to setup CSP in my index.html? Please assist.
Further technical details
- ASP.NET Core version - 5.0.6
- The IDE (VS / VS Code/ VS4Mac) you're running on, and its version - VS 16.0.0