WhatsApp, like many other companies, tests new features on the beta channel before rolling them out widely to its user base around the globe. And the latest features that this Facebook subsidiary is testing are in-app browser and reverse image search. As evident from its name, the in-app browser lets you open web pages from within WhatsApp. This way you don't have to leave WhatsApp to open links. However, do note that you cannot take screenshots or record screen when using this feature. The in-app browser also alerts users when they try to open a web page that could be harmful. And,...