.NET
Microsoft Technologies based on the .NET software framework.
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Blazor hangs when debugging with authentication
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(243.2, 42%, 33%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EFA%3C/text%3E%3C/svg%3E)
Finn Arildsen
76
Reputation points
Am I the only one who experience that 9 of 10 times Blazor hangs with this message when I use authentication, and after I have logged in?
Any hints on how to get past this issue?
.NET
Blazor
Blazor
A free and open-source web framework that enables developers to create web apps using C# and HTML being developed by Microsoft.
1,596 questions
C#
C#
An object-oriented and type-safe programming language that has its roots in the C family of languages and includes support for component-oriented programming.
11,007 questions
Visual Studio Debugging
Visual Studio Debugging
Visual Studio: A family of Microsoft suites of integrated development tools for building applications for Windows, the web and mobile devices.Debugging: The act or process of detecting, locating, and correcting logical or syntactical errors in a program or malfunctions in hardware. In hardware contexts, the term troubleshoot is the term more frequently used, especially if the problem is major.
1,004 questions
{count} votes
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AgaveJoe 28,536 Reputation points2024-04-07T11:40:05.1966667+00:00 The screenshot looks like Chrome debugging with multiple tabs open. Have you tried following the instruction on the screen?
Secondly, it is not clear what authentication you are using. I have a Blazor Identity demo app and I cannot reproduce the reported behavior.
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(121.6, 24%, 21%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ETW%3C/text%3E%3C/svg%3E)
Tiny Wang-MSFT 2,731 Reputation points Microsoft Vendor2024-04-08T02:24:20.6933333+00:00 Hi @Finn Arildsen , I had a test in my side with blazor wsam + Azure AD, the default login mode is
popupso that when I visit a page which having [Authorize] attribute, the browser would pop up a window and the main window would show us a tip with Checking login state..Your issue might due to you enabled console window in Browser so that the debugger code in js makes the app pausing. Since we are lacking of information(authentcation scheme, related codes/changes/configurations), we are not able to reproduce your issue right now.
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(76.8, 62%, 17%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EPC%3C/text%3E%3C/svg%3E)
Philippe Cayouette 0 Reputation points2024-07-17T14:39:52.7266667+00:00 I have the same problem and I found out that it only happens when there is a breakpoint anywhere in my code. When there is no breakpoint, it never happens.
It even happens in swagger when I authenticate, so there is a good chance it has nothing to do with my code.
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