Re: Error 400. The size of the request headers is ...

abecerra · ‎12-13-2016

Hello Guys

Currently, I'm having issues connecting to a Sharepoint list. When I define the data source and set a field as visible I get the following error:

WebAuthoring abnormal termination.
Client date/time: 2016-12-13T04:06:07.822Z
Version: 2.0.562
Session ID: 0a64cf4c-5cfa-2282-922c-7274620a32af
errorMessage: <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN""http://www.w3.org/TR/html4/strict.dtd">
<HTML><HEAErD><TITLE>Bad Request</TITLE>
<META HTTP-EQUIV="Content-Type" Content="text/html; charset=us-ascii"></HEAD>
<BODY><h2>Bad Request - Request Too Long</h2>
<hr><p>HTTP Error 400. The size of the request headers is too long.</p>
</BODY></HTML>

Sometimes I do get additional information like

callStack: Core.ApplicationError: <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN""http://www.w3.org/TR/html4/strict.dtd">
<HTML><HEAD><TITLE>Bad Request</TITLE>
<META HTTP-EQUIV="Content-Type" Content="text/html; charset=us-ascii"></HEAD>
<BODY><h2>Bad Request - Request Too Long</h2>
<hr><p>HTTP Error 400. The size of the request headers is too long.</p>
</BODY></HTML>

Please help!

yudhvirc · ‎12-13-2016

Thanks for reporting this issue. We are investigating it.

Mita_Garg · ‎01-25-2017

Am having the exact same issue. Is there any update on this reported issue?

abhigup · ‎01-26-2017

This is currently a known issue and we are working to provide a fix for it soon.

For the time being, please use PowerApps studio (windows Client) instead of PowerApps web if you encounter this issue.

Thanks.

Jolanda18 · ‎07-28-2020

Goodmorning,

I've got the same error for a specific view in Dynamics 365.

0x80072500 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN""http://www.w3.org/TR/html4/strict.dtd"> <HTML><HEAD><TITLE>Bad Request</TITLE> <META HTTP-EQUIV="Content-Type" Content="text/html; charset=us-ascii"></HEAD> <BODY><h2>Bad Request - Request Too Long</h2> <hr><p>HTTP Error 400. The size of the request headers is too long.</p> </BODY></HTML>

I don't know how to fix this.

greetz

Jolanda

Error 400. The size of the request headers is too long

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