MultiFileUploader stuck at 100%

Hi,
What version of Kentico are you using and how big is the file? If it is a bigger file, what are the request limits set in the request filtering? The issue seems to be related to this article

Hi Juraj,

The file size is only 28KB. The version of Kentico I believe is 10.0.36. There is plenty of storage available.

Thanks, still I would double check the request limits and request filtering settings. 404 error is usually result of these not set correctly. Then, what is your exact azure setup? Azure cloud services or web apps? How was the project deployed?

maxRequestLength:

    <httpRuntime maxRequestLength="2097151" waitChangeNotification="1" maxWaitChangeNotification="3600" requestValidationMode="2.0" maxUrlLength="1000" targetFramework="4.5" />

Regarding maxAllowedContentLength, I do not see that anywhere in the web.config. There 2 lines with this mentioned, but they are both commented out.

The Kentico instance is running as an app service (Size: S2 Standard) in Azure. I wasn't involved in the development and deployment of the project, so I'm not sure how it was deployed.

Have you tried adding the request filtering size as mentioned in the article I linked in my first message? Do not get confused with existing one, as mentioned in the article,it applies for WebDav, you need to add that element to the main system.webServer element:

<system.webServer>
        <security>
            <requestFiltering>
              <requestLimits maxAllowedContentLength="9096648" />
            </requestFiltering>
        </security>
    </system.webServer>

I tried it just now, it does not appear to fix the problem. I added maxAllowedContentLength to the request limits line.

 <system.webServer>
<modules runAllManagedModulesForAllRequests="true">
  <remove name="WebDAVModule" />
  <remove name="XHtmlModule" />
  <remove name="CMSApplicationModule" />
  <add name="XHtmlModule" type="CMS.OutputFilter.OutputFilterModule, CMS.OutputFilter" />
  <add name="CMSApplicationModule" preCondition="managedHandler" type="CMS.Base.ApplicationModule, CMS.Base" />
</modules>
<handlers>
  <remove name="WebDAV" />
  <remove name="ChartImageHandler" />
  <add name="ChartImageHandler" preCondition="integratedMode" verb="*" path="ChartImg.axd" type="System.Web.UI.DataVisualization.Charting.ChartHttpHandler, System.Web.DataVisualization, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
</handlers>
<staticContent>
  <remove fileExtension=".woff" />
  <mimeMap fileExtension=".woff" mimeType="application/x-font-woff" />
  <remove fileExtension=".svg" />
  <mimeMap fileExtension=".svg" mimeType="image/svg+xml" />
  <remove fileExtension=".nupkg" />
  <mimeMap fileExtension=".nupkg" mimeType="application/zip, application/octet-stream" />
</staticContent>
<security>
  <requestFiltering>
    <requestLimits maxQueryString="1024" maxUrl="2048" maxAllowedContentLength="2147483648" >
      <headerLimits>
        <add header="Content-type" sizeLimit="100" />
      </headerLimits>
    </requestLimits>
    <!-- Disable direct access to these files which are used only internally by CMS application -->
    <denyUrlSequences>
      <add sequence="/CMSTemplates" />
      <add sequence="/CMSPages/PortalTemplate.aspx" />
    </denyUrlSequences>
  </requestFiltering>
</security>
<validation validateIntegratedModeConfiguration="false" />

</system.webServer>

I think that did the trick, thanks.

  <security>
  <requestFiltering>
    <requestLimits maxAllowedContentLength="9096648" />
    <!-- Disable direct access to these files which are used only internally by CMS application -->
    <denyUrlSequences>
      <add sequence="/CMSTemplates" />
      <add sequence="/CMSPages/PortalTemplate.aspx" />
    </denyUrlSequences>
  </requestFiltering>
</security>