• Event log source Microsoft.AspNetCore.Server.IIS.Core.IISHttpServer with Invalid URI
    Question Mar 7, 2025
    I am getting the following event log error on a production site. This does not occur on any other environment (dev, QA or stage). It occurs almost every day if not every day. Sometimes it's once a day, other times it is a couple dozen times. Sometimes it will occur every f...

  • Issues with Code View in rich text editor (Froala) in Kentico 13
    Question Jan 2, 2024
    We're upgrading our site from Kentico 10 to Kentico 13, and in the page builder we've noticed an issue with the rich text editor widget's Code View. We're not sure if this is Froala or Kentico itself, but I think for at least one issue it's Kentico. The first issue is the URL...

  • Invalid URL param hash when using alternate domain
    Question Feb 13, 2023
    We have 2 sets of domains pointing to our UAT admin site. The one set is the default Azure App Service web app domain. The second is a custom domain we own. The A record is pointing to the public IP address of the Azure web app. There is a reverse proxy enabled. If the reverse...

  • K13 DropDownComponent - how to return an int
    Question Feb 9, 2023
    I have the following code for a widget property: [EditingComponent(DropDownComponent.IDENTIFIER, Order = 8, Label = "Image Focus Y axis")] [EditingComponentProperty(nameof(DropDownProperties.DataSource), "0;top\r\n100;bottom")] [EditingComponentProperty(nameof(Dro...

  • Kentico 12 MVC Custom scheduled task
    Question Jul 24, 2023
    Hi all, Following the instructions given here: https://docs.xperience.io/k12sp/configuring-kentico/scheduling-tasks/scheduling-custom-tasks I made a simple task which I want to register as a scheduled task in the kentico scheduled tasks module but my namespace and task name do...

  • Preview URL - Content Security Policy Injection Broken
    Question Nov 21, 2023
    In the documentation for [Kentico 12 Preview](https://docs.xperience.io/k12sp/developing-websites/retrieving-content-in-mvc-applications/adding-preview-mode-support), it says: *"Because the preview URLs could potentially be vulnerable to clickjacking attacks, the UsePreview fe...

  • K13 Form Validation Error Messages Not Displaying
    Question Mar 26, 2025
    We are testing K13, 13.0.165, getting ready to migrate from K12. I'm looking at Forms and have an issue with field validation not showing error messages. Below is a simple form with one field that has a validation number must be greater than 10. The form will not submit, but t...

  • Invalid length for a Base-64 char array or string
    Question Sep 3, 2014
    Throughout my site, regardless of the page templates and document types, we are getting either an Invalid Viewstate error or Invalid Length for a Base-64 char array or string. These are pages that have every web part with viewstate turned off except for a single web part on th...

  • RE:Invalid viewstate.
    Forum Post Jun 25, 2012
    Try clearing the browser cookies. Regards Aashish Khandelwal

  • RE:Invalid viewstate.
    Forum Post Jul 2, 2012
    I tried removing all javascripts but still problem is there. Regards Aashish

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