For some time, an interesting debate about the role of web browsers has remained alive. Their responsibilities have increased, and for some, it means blurring their "edges" in relation to the operating system. On the other hand, this same idea instilled the feeling that browsers are increasingly heavier and slower, thus proposing a return to the roots. In part, that is what Microsoft is doing with its JavaScript Browser, a simple browser prototype designed as an app for Windows 10.
I must admit that in recent months, my relationship with browsers has gone from bad to worse. The "memory crisis" that Chrome suffers is out of control, Firefox continues to receive updates without tangible improvements, Edge is still green for what the Web demands today, and with the exception of Safari (which only feels comfortable on OS X), the rest chase Chrome. Now, see my choice of words: "Edge is still green". Microsoft has a very big opportunity with its new browser. The decision to limit it to Windows 10 is definitely a step backward (something Microsoft has already accustomed us to), but it is possible that from its vision an even better development emerges.
I estimate that users of the Microsoft Store have already encountered JavaScript Browser. Its development undoubtedly belongs to Redmond, but with two browsers on the market, what is its goal? The official presentation speaks of a "tutorial", a proof of concept to demonstrate the capabilities of Windows 10. From a more technical point of view, we find JavaScript, HTML, CSS, and a pinch of C++ to enable supplementary functions. JavaScript Browser is a combination of the WebView control for universal apps, the EdgeHTML engine, and support for the ECMAScript 2015 specification present in Chakra, Edge's JavaScript engine.
The user should not have great expectations with this browser. In fact, there isn't even support for tab navigation, or compatibility with plugins. YouTube will work in HTML5 mode and the same extends to other basic sites, but it won't open anything based on Flash. Even so, the feedback in the store has been very positive. After all, "fast and simple" is a robust formula that will always attract users...
