<!-- First of all, thanks for reaching out and reporting any issues you have found. Your feedback is valuable to the development of WebViewer UI! --> <!-- If the issue can only be reproduced on a specific document, or you would need to share some company/personal information, then we recommend you use open a support ticket via https://www.pdftron.com/form/request/ --> **WebViewer version** 11.3 **The current behavior** move `disableIndexedDB: true` to WebViewer. Moving between tabs cause to error:  It try to writeToDB although we disableIndexedDB