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Description
Library/API/IoT binding
nanoFramework.System.Net.Http
Visual Studio version
Microsoft Visual Studio Enterprise 2022 (64-bit) - Preview Version 17.14.0 Preview 2.0
.NET nanoFramework extension version
2022.12.136
Target name(s)
ESP32-S3
Firmware version
No response
Device capabilities
Target capabilities: Has nanoBooter: NO IFU capable: NO Has proprietary bootloader: YES
Description
It is not possible to add Http headers (like User-Agent, Accept) to HttpClient by DefaultRequestHeaders or HttpRequestMessage . Trying to add standard Headers, produces the following exception: Cannot update restricted header User-Agent. Cannot update restricted header Accept. Inspecting the online source code reveals that the problem arises from WebHeaderCollection class in ThrowOnRestrictedHeader method: the class has a property named HInfo with type of HeaderInfoTable . HeaderInfoTable has a table with predefined Http Headers (Like User-Agent) . User can not add a Http Header if that header exists in the HeaderInfoTable. So, how can I add (or change) standard Http Header to httpClient (Like User-Agent,Accept)?
How to reproduce
1.Create a Static HttpClient
httpClient = new HttpClient();
2.Try to Add Headers To DefaultRequestHeaders
httpClient.DefaultRequestHeaders.Add("Accept", "application/json");
httpClient.DefaultRequestHeaders.Add("Accept-Language", "en-US,en;q=0.5");
httpClient.DefaultRequestHeaders.Add("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:136.0) Gecko/20100101 Firefox/136.0");
Expected behaviour
It should be possible to Add or Change Standard Http Headers to HttpClient
Screenshots
No response
Sample project or code
No response
Aditional information
No response