Hello, Thank you for the additional information. If I try to click this testing button then the same error occurs, as if I click the Allow cookies consent button. Thus I think, that this issue isn't caused by the web part itself, but by some other part of the site. Could yo...

hello when return from a blank shooping cart to home page ( for first time ) in 1.9c we have a error about post back or call back invalid : Invalid postback or callback argument. Event validation is enabled using in configuration or in a page. For security purposes, this...

How to solve the 'Element' is an invalid XmlNodeType error

Two interesting web parts by Interesting Pty Ltd

Error message: Validation of viewstate MAC failed. If this application is hosted by a Web Farm or cluster, ensure that <machineKey> configuration specifies the same validationKey and validation algorithm. AutoGenerate cannot be used in a cluster.

Hi Radek, This happen only on client / external user machine, I'm unable to reproduce the problem but now it seem to happen very often, I Upgraded to 5.5 R2 some time ago, here's the build number v5.5.4027 R2. Now I get 'Invalid web resource request', 'Invalid View...

[Problem picture](https://i.stack.imgur.com/0Sec0.png) I use Visual Studio 2019 to run. I don't know how to add domain name in web.config.

Cross-site request forgery (CSRF) is one of the most common web applications vulnerabilities. In 2013 it was ranked number 8 in OWASP’s TOP 10 document . In this article I am going to explain what is the CSRF vulnerability and the available protection methods.

Hello, Ia m getting "Error: Invalid URI: The format of the URI could not be determined." in task In task Last Run and Next Run is working but the Execution number is not increment can anyone please help why am i getting this error. Thanks

Hi all, I get the following error in the event log when I am attempting to save information in a editable textbox or if I try to remove a web part. I am using portal pages.Can anyone tell me whats the problem and possibly a fix. Thanks in advance Event ID: 631292 Event...