Applied the RegExp issues reported by Jeff Robinson here: http://jmrware.com/articles/2010/jqueryregex/jQueryRegexes.html Additionally broke out all remaining inline RegExp. Fixes #7062.

src/ajax.js

@@ -1,12 +1,13 @@
 (function( jQuery ) {
 
 var jsc = jQuery.now(),
-	rscript = /<script(.|\s)*?\/script>/gi,
-	rselectTextarea = /select|textarea/i,
-	rinput = /color|date|datetime|email|hidden|month|number|password|range|search|tel|text|time|url|week/i,
+	rscript = /<script\b[^<]*(?:(?!<\/script>)<[^<]*)*<\/script>/gi,
+	rselectTextarea = /^(?:select|textarea)/i,
+	rinput = /^(?:color|date|datetime|email|hidden|month|number|password|range|search|tel|text|time|url|week)$/i,
+	rbracket = /\[\]$/,
 	jsre = /\=\?(&|$)/,
 	rquery = /\?/,
-	rts = /(\?|&)_=.*?(&|$)/,
+	rts = /([?&])_=[^&]*(&?)/,
 	rurl = /^(\w+:)?\/\/([^\/?#]+)/,
 	r20 = /%20/g,
 
@@ -61,7 +62,7 @@ jQuery.fn.extend({
 					// See if a selector was specified
 					self.html( selector ?
 						// Create a dummy div to hold the results
-						jQuery("<div />")
+						jQuery("<div>")
 							// inject the contents of the document in, removing the scripts
 							// to avoid any 'Permission Denied' errors in IE
 							.append(res.responseText.replace(rscript, ""))
@@ -542,7 +543,7 @@ function buildParams( prefix, obj, traditional, add ) {
 	if ( jQuery.isArray(obj) ) {
 		// Serialize array item.
 		jQuery.each( obj, function( i, v ) {
-			if ( traditional || /\[\]$/.test( prefix ) ) {
+			if ( traditional || rbracket.test( prefix ) ) {
 				// Treat each array item as a scalar.
 				add( prefix, v );