To subscribe to this RSS feed, copy and paste this URL into your RSS reader. But wouldnt that be covered by your basic test already? It contains well written, well thought and well explained computer science and programming articles, quizzes and practice/competitive programming/company interview Questions. Why does my JavaScript code receive a "No 'Access-Control-Allow-Origin' header is present on the requested resource" error, while Postman does not? Using polling here seems a bit crude in comparison to replacing it with listening for a readystatechange event. Rendering begins starting with objects and then styles from a layout as in all at once and if you slowed it down you would see a pixelated progression as it took shape starting with the content areas and then the objects and then the styles for those objects. Using timings initiated with a