title: Are Modern browsers loading scripts parallel or sequentially?
body: <p>I'm evaluating existing resources for script loading optimization, but I readed in some articles like <a href="http://www.stevesouders.com/blog/2010/12/06/evolution-of-script-loading/" rel="noreferrer">this</a>, refers to the older browsers block other downloads until this sequential script loading phase is completed. I check Modernizr(yepnope.js), headjs and ControlJs as candidates. But, is it necesary use this tools for parallel script loading in modern browsers?</p>