Often new documents opens up a new popup window where you then loose the back function of the browser
Chrome browser has a plugin to force popup from added sites to a tab instead
Here is a how to for this plugin setup:
1. Navigate to: https://chrome.google.com/webstore/category/extensions?hl=en-GB
2. Search for One Window
3. Add this plugin to Chrome
4. On top right corner of Chrome, find this plugin:
5. Right click on it and select Options
6. In the popup that now shows add https://abms.antenor.no# in the textbox and hit save, restart Chrome browser.