How to remove blank space between header and web viewer in an app?

How to remove blank space between header and web viewer in an app?

Your query will be delisted soon. Already users talked about this, and it is in the bug scanner. Pls have the habit of reading just before posting

Welcome to the community. Next time please use search :mag: Excess top margins when using the Web Viewer or Custom WebViewer is a know bug and will be fixed in the next release