cancel
Showing results for 
Search instead for 
Did you mean: 
Reply
Highlighted
Helper II
Helper II

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

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>

at error (https://paaeaucdn.azureedge.net/studio/js/AppMagic.WebAuthoring.js?v=39dbcefc99d0:1117:45)
at notifyError (https://paaeaucdn.azureedge.net/studio/openSource/modified/winjs/js/base.js?v=39dbcefc99d0:2062:25)
at state_error_notify.enter (https://paaeaucdn.azureedge.net/studio/openSource/modified/winjs/js/base.js?v=39dbcefc99d0:1754:21)
at _run (https://paaeaucdn.azureedge.net/studio/openSource/modified/winjs/js/base.js?v=39dbcefc99d0:1921:17)
at _chainedError (https://paaeaucdn.azureedge.net/studio/openSource/modified/winjs/js/base.js?v=39dbcefc99d0:1884:13)
at error (https://paaeaucdn.azureedge.net/studio/openSource/modified/winjs/js/base.js?v=39dbcefc99d0:1589:25)
at notifyError (https://paaeaucdn.azureedge.net/studio/openSource/modified/winjs/js/base.js?v=39dbcefc99d0:2062:25)
at state_error_notify.enter (https://paaeaucdn.azureedge.net/studio/openSource/modified/winjs/js/base.js?v=39dbcefc99d0:1754:21)
at _run (https://paaeaucdn.azureedge.net/studio/openSource/modified/winjs/js/base.js?v=39dbcefc99d0:1921:17)
at _error (https://paaeaucdn.azureedge.net/studio/openSource/modified/winjs/js/base.js?v=39dbcefc99d0:1894:13)

 

Please help!

4 REPLIES 4
Highlighted
Power Apps
Power Apps

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

Thanks for reporting this issue. We are investigating it.

Highlighted
Microsoft
Microsoft

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

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

Highlighted
Microsoft
Microsoft

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

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.

Highlighted
New Member

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

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

Helpful resources

Announcements
August 2020 Community Challenge: Can You Solve These?

August 2020 Community Challenge: Can You Solve These?

We're excited to announce our first cross-community 'Can You Solve These?' challenge!

secondImage

Return to Workplace

Reopen responsibly, monitor intelligently, and protect continuously with solutions for a safer work environment.

secondImage

Super Users Coming in August

We are excited for the next Super User season.

secondImage

Community User Group Member Badges

FIll out a quick form to claim your community user group member badge today!

secondImage

Power Platform 2020 release wave 2 plan

Features releasing from October 2020 through March 2021

Top Solution Authors
Top Kudoed Authors
Users online (7,626)