Cascading Parameter is null with SSR /interactive Server

[hannespreishuber]

Is there an existing issue for this?

• I have searched the existing issues

Describe the bug

Seems to be a 9 issue

<CascadingValue Name="Hannes" Value="11"> <Routes /> </CascadingValue>

Set home.razor to

@rendermode InteractiveServer

[CascadingParameter (Name="Hannes")] public int hannes { get; set; }

Parameter @hannes is 0

Expected Behavior

should be 11

Steps To Reproduce

https://github.com/hannespreishuber/cascadingtestcase

Exceptions (if any)

No response

.NET Version

9

Anything else?

No response

[hannes]

Hey :)

[javiercn]

@hannespreishuber thanks for contacting us.

This is by design. Your cascading parameter value is crossing render boundaries, which is not supported.
https://github.com/hannespreishuber/CascadingTestCase/blob/master/CascadingTestCase/Components/Pages/Home.razor#L2

See #51969