Large file upload when using Azure CDN

Category: azure cdn


A Kansal on Thu, 14 Jun 2018 23:37:29

In my web service, I enabled large file upload using two settings in web.config (shown below). That works when I access my web app without CDN. However, when Azure CDN is enabled, a large file upload gets a 413 (Payload too large) response. I can still get the large upload to work if I access my <name> endpoint, but when I access my custom domain URL (which points to the CDN, <name>, then I get the 413. Is there something special to do to propagate the payload size settings to Azure CDN? I am using Verison Premium CDN option in Azure.

<httpRuntime maxRequestLength="1048576" executionTimeout="3600" />

        <requestLimits maxAllowedContentLength="1073741824" />


Anton Kucer - MSFT on Thu, 21 Jun 2018 20:53:30

Please provide a sample URL that illustrates this issue so that we can investigate this issue further. Thanks.