<p>Is there a security limit to the number of Ajax <a href="http://en.wikipedia.org/wiki/XMLHttpRequest" rel="nofollow noreferrer">XMLHttpRequest</a> objects you can create on a single page? If so, does this vary from one browser to another?</p>

[{'answer_id': 54241, 'author': 'Kevin', 'author_id': 2678, 'author_profile': 'https://Stackoverflow.com/users/2678', 'pm_score': 2, 'selected': True, 'text': "<p>I don't think so, but there's a limit of two simultaneous HTTP connections per domain per client (you can override this in Firefox, but practically no one does so).</p>\n"}, {'answer_id': 54282, 'author': '8128', 'author_id': 1530, 'author_profile': 'https://Stackoverflow.com/users/1530', 'pm_score': 0, 'selected': False, 'text': '<p>Yes, as Kevin says, HTTP/1.1 specifications say "A single-user client should not maintain more than 2 connections with any server or proxy."</p>\n'}, {'answer_id': 54332, 'author': 'FlySwat', 'author_id': 1965, 'author_profile': 'https://Stackoverflow.com/users/1965', 'pm_score': 1, 'selected': False, 'text': "<p>I've found it easier to pool and reuse XMLHTTPRequest objects instead of creating new ones...</p>\n"}]
['https://Stackoverflow.com/questions/54217', 'https://Stackoverflow.com', 'https://Stackoverflow.com/users/1096640/']