Hi AllWe are using wcfFramework46services for file upload and download large files amp documentsWcf Webconfig Issue Header ContentType comming arround 200 char and its throws 431 Request Header Fields Too Large errorltwsHttpBindinggtltbiding name3434 messageEncoding34Mtom34 gtltwsHttpBidinggtltheaderLimitsgtltadd header34Contenttype34 sizeLimit3410034 gtltheaderLimitsgtWe are not using any custome header implemntation as of n

Error: 431 Request Header Fields Too Large

prokrish...

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User: prokrishnaa1
Posted: on Nov 01, 2024 07:02 AM
Forum: ASP.Net Web Forms
Replies: 4
Views: 370

Hi All,

We are using wcf(Framework:4.6)services for file upload and download large files & documents

Wcf Web.config: Issue: Header Content-Type comming arround 200 char and its throws "431 Request Header Fields Too Large" error.

<wsHttpBinding>
<biding name="" messageEncoding="Mtom" />
</wsHttpBiding>
<headerLimits>
<add header="Content-type" sizeLimit="100" />
</headerLimits>

We are not using any custome header implemntation as of now.(ex: customeMessageEncoder, customeEndpointbehaviour)

Please advise to sortout the issue.

ex: Content-Length: 2717

Content-Type: multipart/related; type="application/xop+xml";start="<http://tempuri.org/8>"; boundary="uuid:28cb7499-e6c0-4820-281-897966f41f53-10-2" start info="application/soap+xml"

Accept-Encoding: gzip,

deflate Expect: 100-continue

Host:Test_server:44429

MIME-Version: 1.8

VsDebuggerCausalityData: UIDPowSYDqFtctVNrTI@t9PAZNEAAAAA6etU/85CsUqGoR+D2qXF+HQVV7DF5BtMpGHiw5zTBngACQAA

Download FREE API for Word, Excel and PDF in ASP.Net

prokrish...

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User: prokrishnaa1
Replied: on Nov 03, 2024 04:52 AM
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Hi dharmendra das, Thanks for response. if i have change the length then its will work. But As part of the VA should be sizeLimit="100" only... Please advise how to customie the header length to fix the issue.

Content-Length: 2717 Content-Type: multipart/related; type="application/xop+xml";start="<http://tempuri.org/8>"; boundary="uuid:28cb7499-e6c0-4820-281-897966f41f53-10-2" start info="application/soap+xml" Accept-Encoding: gzip, deflate Expect: 100-continue

above bold text coming arrount 184 char, if i have mentioned more than above length its working other wise it will give 431 error will come. Please advide customise Content-Type to fix this issue with <add header="Content-type" sizeLimit="100" />

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Error: 431 Request Header Fields Too Large

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