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Fix:ControllerLinkGeneratorExtensions.GetAmbientValues throws NullReferenceException (#24576) 

- related issue #24412
- add null check on GetAmbientValues(HttpContext)
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WuYafeng 2020-08-06 00:33:31 +08:00 committed by GitHub
parent f05827484e
commit 748798889b
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src/Mvc/Mvc.Core/src/Routing/ControllerLinkGeneratorExtensions.cs
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@ -256,7 +256,7 @@ namespace Microsoft.AspNetCore.Routing
private static RouteValueDictionary GetAmbientValues(HttpContext httpContext)
{
return httpContext?.Features.Get<IRouteValuesFeature>()?.RouteValues;
return httpContext?.Features?.Get<IRouteValuesFeature>()?.RouteValues;
}
}
}