keep browser open, replace tab on openURL script

I was going to use the web browser component but it does not work on a raspberry pi, so now I have a URL that I am opening to display information based on a scan with It is much faster if I leave the browser open after the first scan, but doing so creates a new tab per openURL() call. The browser on the RPi is Chromium, and I couldn’t find any settings to change this. Is there a way to refresh or replace the browser with openURL()? Any other methods to accomplish this?