Edit this page

Error Promise is undefined

Environment

Product ProgressĀ® TelerikĀ® Report Server
Operating System Windows

Description

As of Telerik Reporting R2 2017, the Report Server and HTML5 Report Viewer require a browser supporting promises.

The error indicates that the used browser does not support promises. Please follow the HTML5 Viewer: Important Settings article which contains the requirements for promises.

Solution

Add a promise polyfill to the page, such as Polyfill.io.

Is this article helpful? Yes / No
Thank you for your feedback!

Give article feedback

Tell us how we can improve this article

close
Dummy