27 lines
1.1 KiB
Markdown
27 lines
1.1 KiB
Markdown
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##WCF AddressHeaderCollection now throws an ArgumentException if an addressHeader element is null
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###Scope
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Minor
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###Version Introduced
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.NET Framework 4.7.1
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###Source Analyzer Status
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NotPlanned
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###Change Description
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In .NET Framework 4.7 and earlier versions, there is a bug in one of the public constructors of AddressHeaderCollection where elements of the IEnumerable argument aren<65>t checked for null. Starting with .NET 4.7.1 the public constructor of AddressHeaderCollection(IEnumerable<AddressHeader> addressHeaders) now throws an ArgumentException if one of the elements is null.
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###Recommended Action:
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If you run into compatibility issue with this change on .Net 4.7.1 or later version, you may opt-out the change by adding the following configuration in App config file:
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<configuration>
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<runtime>
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<AppContextSwitchOverrides value="Switch.System.ServiceModel.DisableAddressHeaderCollectionValidation=true" />
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</runtime>
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</configuration>
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##Affected APIs
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* Not detectable via API analysis
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<!--
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### Original Bug
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[275879] (https://devdiv.visualstudio.com/web/wi.aspx?pcguid=011b8bdf-6d56-4f87-be0d-0092136884d9&id=275879)
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-->
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