How can I validate an email address in JavaScript? Firefox, Chrome and Opera autofill forms on DOMContentLoaded. To check if a cookie is set you can do this: I want to check if the page is being loaded for the first time, and if it is then display the filter. just wanted a script for console or bookmark which would keep scrolling down on infinite scrollers. That it uses jQuery is absolutely no problem, as it'll need to measure the time to load the script file anyway. Both Chrome and FF has implemented it when document has finished loading sometime after it has parsed. The best practice is to check for an element which will only appear on the page if the page successfully loads. Ackermann Function without Recursion or Stack, Centering layers in OpenLayers v4 after layer loading. For instance, if the page has a form with login and password, and the browser remembered the values, then on DOMContentLoaded it may try to autofill them (if approved by the user). qyld stock dividend Visit myaccess.nymta.info Key Findings We analyzed Myaccess.nymta.info page load time and found that the first response time was 51 ms and then it took 1.5 sec to load all DOM resources and completely render a web page. Lee Taylor is a podcast host, entrepreneur, and author who has helped entrepreneurs go from 100K to excess of 1 million whilst also building better health, Wealth & relationships. Issue 2: Multiple events after document.ready Or am I just imagining that? ,