Hp web site - 149Chapter 13JavaScript Essentialsthough JavaScript is turned on by
149Chapter 13JavaScript Essentialsthough JavaScript is turned on by default in most browsers, many institutional deploymentsturn it off when the browser is installed on client machines. The reasons behind this MISdeployment decision vary from scares about Java security violations incorrectly associatedwith JavaScript, valid JavaScript security concerns on some browser versions, and the factthat some firewalls try to filter JavaScript lines from incoming HTML streams. All JavaScript-capable browsers include a set of tags to balancethe tag set. If one of these browsers has JavaScript turned off, the
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