IE9 has hardware-accelerated rendering support and FP 10.2 has integrated that feature to improve rendering performance, up to 35% faster according to MS / Adobe. More info: How many concurrent AJAX (XmlHttpRequest) requests are allowed in popular browsers?Īnother thing to keep in mind is the recent integration between Flash Player 10.2 and Internet Explorer 9. This can cause a significant performance difference in applications that make a large number of network calls for data. For instance, IE 7 and earlier only supports two whereas most other browsers support 6-8. Various web browsers support a different number of concurrent network connections against a single hostname.FileReference.upload() can be flaky in some browsers where it does not pass cookie information that identifies the user's session (such as Java's 'jsessionid').
