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fix missing code annotation and fix name (#5059) 

* fix missing code annotation

* also fix name
pull/5060/head
yaananth 2017-12-21 19:28:09 -05:00 committed by Rick Anderson
parent f0bf43ad32
commit 5dfc046bad
1 changed files with 4 additions and 4 deletions
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8
aspnet/aspnet/overview/web-development-best-practices/what-not-to-do-in-aspnet-and-what-to-do-instead.md
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@ -44,7 +44,7 @@ This topic contains the following sections:
- [UrlPathEncode](#urlpathencode)
- [Reliability and Performance](#performance)
- [PreSendRequestHeaders and PreSendRequestContext](#presend)
- [PreSendRequestHeaders and PreSendRequestContent](#presend)
- [Asynchronous Page Events with Web Forms](#asyncevents)
- [Fire-and-Forget Work](#fire)
- [Request Entity Body](#requestentity)
@ -195,13 +195,13 @@ The following example shows how to pass an encoded URL as a query string paramet
<a id="presend"></a>
### PreSendRequestHeaders and PreSendRequestContext
### PreSendRequestHeaders and PreSendRequestContent
Recommendation: Do not use these events with managed modules. Instead, write a native IIS module to perform the required task. See [Creating Native-Code HTTP Modules](https://msdn.microsoft.com/en-us/library/ms693629.aspx).
You can use the [PreSendRequestHeaders](https://msdn.microsoft.com/en-us/library/system.web.httpapplication.presendrequestheaders.aspx) and [PreSendRequestContext](https://msdn.microsoft.com/en-us/library/system.web.httpapplication.presendrequestcontent.aspx) events with native IIS modules.
You can use the [PreSendRequestHeaders](https://msdn.microsoft.com/en-us/library/system.web.httpapplication.presendrequestheaders.aspx) and [PreSendRequestContent](https://msdn.microsoft.com/en-us/library/system.web.httpapplication.presendrequestcontent.aspx) events with native IIS modules.
> [!WARNING]
> Do not use `PreSendRequestHeaders` and PreSendRequestContext` with managed modules that implement `IHttpModule`. Setting these properties can cause issues with asynchronous requests. We have seen instances where the combination of Application Requested Routing(ARR) and websockets lead to access violation exceptions (iiscore!W3_CONTEXT_BASE::GetIsLastNotification+68 in iiscore.dll has caused an access violation exception (0xC0000005)) that lead to w3wp crashing.
> Do not use `PreSendRequestHeaders` and `PreSendRequestContent` with managed modules that implement `IHttpModule`. Setting these properties can cause issues with asynchronous requests. We have seen instances where the combination of Application Requested Routing(ARR) and websockets lead to access violation exceptions (iiscore!W3_CONTEXT_BASE::GetIsLastNotification+68 in iiscore.dll has caused an access violation exception (0xC0000005)) that lead to w3wp crashing.
<a id="asyncevents"></a>