Hi Alvin,

Thank you for the provided screenshot.

We have tested the mentioned example from our documentation on multiple browsers and machines and got no CORS policy errors. This usually depends on the browser settings or happens when the Stackblitz example is opened in an incognito window. I suggest trying to open the example in another browser and/or check the settings of the current browser.

I also wanted to mention that  "Basic Usage" and "Marker Shapes" demos might include the following error " TypeError: l.setCornerRadius is not a function". In that situation, the demos have to be run locally because of StackBlitz is loading the wrong version of the Drawing package.

As the CORS error isn't related to the Kendo UI for Angular products, I will be setting the status of the ticket to "Declined".

Regards,
Yanmario
Progress Telerik