resourceKey case sensitivity

Given an application-level resource object with Key: Specific and Value: foo
i would have expected GetGlobalResourceObject("Text","SPECIFIC") to return null.
the function instead return 'foo'

unless i am missing something..

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* ID: 73f02d3d-97e5-f41e-0424-73a885d21221
* Version Independent ID: 9d22b2be-3413-bbb4-0a65-43177c76f08e
* Content: [HttpContextWrapper.GetGlobalResourceObject Method (System.Web)](https://docs.microsoft.com/en-us/dotnet/api/system.web.httpcontextwrapper.getglobalresourceobject?view=netframework-4.7.2)
* Content Source: [xml/System.Web/HttpContextWrapper.xml](https://github.com/dotnet/dotnet-api-docs/blob/master/xml/System.Web/HttpContextWrapper.xml)
* Product: **dotnet-api**
* GitHub Login: @dotnet-bot
* Microsoft Alias: **dotnetcontent**