Release 3.2.0

AUTHORS.txt

@@ -293,3 +293,9 @@ Damian Senn <jquery@topaxi.codes>
 Ralin Chimev <ralin.chimev@gmail.com>
 Felipe Sateler <fsateler@gmail.com>
 Christophe Tafani-Dereeper <christophetd@hotmail.fr>
+Manoj Kumar <nithmanoj@gmail.com>
+David Broder-Rodgers <broder93@gmail.com>
+Alex Louden <alex@louden.com>
+Alex Padilla <alexonezero@outlook.com>
+南漂一卒 <shiy007@qq.com>
+karan-96 <karanbatra96@gmail.com>

LICENSE.txt

-Copyright jQuery Foundation and other contributors, https://jquery.org/
+Copyright JS Foundation and other contributors, https://js.foundation/
 
 This software consists of voluntary contributions made by many
 individuals. For exact contribution history, see the revision history

dist/core.js

@@ -24,7 +24,7 @@ define( [
 "use strict";
 
 var
-	version = "3.1.1",
+	version = "3.2.0",
 
 	// Define a local copy of jQuery
 	jQuery = function( selector, context ) {
@@ -172,11 +172,11 @@ jQuery.extend = jQuery.fn.extend = function() {
 
 				// Recurse if we're merging plain objects or arrays
 				if ( deep && copy && ( jQuery.isPlainObject( copy ) ||
-					( copyIsArray = jQuery.isArray( copy ) ) ) ) {
+					( copyIsArray = Array.isArray( copy ) ) ) ) {
 
 					if ( copyIsArray ) {
 						copyIsArray = false;
-						clone = src && jQuery.isArray( src ) ? src : [];
+						clone = src && Array.isArray( src ) ? src : [];
 
 					} else {
 						clone = src && jQuery.isPlainObject( src ) ? src : {};
@@ -215,8 +215,6 @@ jQuery.extend( {
 		return jQuery.type( obj ) === "function";
 	},
 
-	isArray: Array.isArray,
-
 	isWindow: function( obj ) {
 		return obj != null && obj === obj.window;
 	},
@@ -291,10 +289,6 @@ jQuery.extend( {
 		return string.replace( rmsPrefix, "ms-" ).replace( rdashAlpha, fcamelCase );
 	},
 
-	nodeName: function( elem, name ) {
-		return elem.nodeName && elem.nodeName.toLowerCase() === name.toLowerCase();
-	},
-
 	each: function( obj, callback ) {
 		var length, i = 0;
 

package.json

@@ -2,12 +2,12 @@
   "name": "jquery",
   "title": "jQuery",
   "description": "JavaScript library for DOM operations",
-  "version": "3.1.1",
+  "version": "3.2.0",
   "main": "dist/jquery.js",
   "homepage": "https://jquery.com",
   "author": {
-    "name": "jQuery Foundation and other contributors",
-    "url": "https://github.com/jquery/jquery/blob/3.1.1/AUTHORS.txt"
+    "name": "JS Foundation and other contributors",
+    "url": "https://github.com/jquery/jquery/blob/3.2.0/AUTHORS.txt"
   },
   "repository": {
     "type": "git",
@@ -91,7 +91,7 @@
       "Traversing",
       "Wrap"
     ],
-    "markerPattern": "^((clos|fix|resolv)(e[sd]|ing))|(refs?)",
-    "ticketPattern": "^((Closes|Fixes) ([a-zA-Z]{2,}-)[0-9]+)|(Refs? [^#])"
+    "markerPattern": "^((clos|fix|resolv)(e[sd]|ing))|^(refs?)",
+    "ticketPattern": "^((Closes|Fixes) ([a-zA-Z]{2,}-)[0-9]+)|^(Refs? [^#])"
   }
 }

src/.eslintrc.json

 {
-	// Support: IE <=9 only, Android <=4.0 only
-	// The above browsers are failing a lot of tests in the ES5
-	// test suite at http://test262.ecmascript.org.
-	"parserOptions": {
-		"ecmaVersion": 3
-	},
-	"globals": {
-		"window": true,
-		"jQuery": true,
-		"define": true,
-		"module": true,
-		"noGlobal": true
-	},
-	"rules": {
-		"strict": ["error", "function"]
-	}
+	"root": true,
+
+	"extends": "../.eslintrc-browser.json"
 }

src/attributes/attr.js

 define( [
 	"../core",
 	"../core/access",
+	"../core/nodeName",
 	"./support",
 	"../var/rnothtmlwhite",
 	"../selector"
-], function( jQuery, access, support, rnothtmlwhite ) {
+], function( jQuery, access, nodeName, support, rnothtmlwhite ) {
 
 "use strict";
 
@@ -74,7 +75,7 @@ jQuery.extend( {
 		type: {
 			set: function( elem, value ) {
 				if ( !support.radioValue && value === "radio" &&
-					jQuery.nodeName( elem, "input" ) ) {
+					nodeName( elem, "input" ) ) {
 					var val = elem.value;
 					elem.setAttribute( "type", value );
 					if ( val ) {

src/attributes/val.js

@@ -2,8 +2,10 @@ define( [
 	"../core",
 	"../core/stripAndCollapse",
 	"./support",
+	"../core/nodeName",
+
 	"../core/init"
-], function( jQuery, stripAndCollapse, support ) {
+], function( jQuery, stripAndCollapse, support, nodeName ) {
 
 "use strict";
 
@@ -62,7 +64,7 @@ jQuery.fn.extend( {
 			} else if ( typeof val === "number" ) {
 				val += "";
 
-			} else if ( jQuery.isArray( val ) ) {
+			} else if ( Array.isArray( val ) ) {
 				val = jQuery.map( val, function( value ) {
 					return value == null ? "" : value + "";
 				} );
@@ -121,7 +123,7 @@ jQuery.extend( {
 							// Don't return options that are disabled or in a disabled optgroup
 							!option.disabled &&
 							( !option.parentNode.disabled ||
-								!jQuery.nodeName( option.parentNode, "optgroup" ) ) ) {
+								!nodeName( option.parentNode, "optgroup" ) ) ) {
 
 						// Get the specific value for the option
 						value = jQuery( option ).val();
@@ -173,7 +175,7 @@ jQuery.extend( {
 jQuery.each( [ "radio", "checkbox" ], function() {
 	jQuery.valHooks[ this ] = {
 		set: function( elem, value ) {
-			if ( jQuery.isArray( value ) ) {
+			if ( Array.isArray( value ) ) {
 				return ( elem.checked = jQuery.inArray( jQuery( elem ).val(), value ) > -1 );
 			}
 		}

src/callbacks.js

@@ -69,7 +69,7 @@ jQuery.Callbacks = function( options ) {
 		fire = function() {
 
 			// Enforce single-firing
-			locked = options.once;
+			locked = locked || options.once;
 
 			// Execute callbacks for all pending executions,
 			// respecting firingIndex overrides and runtime changes

src/core.js

@@ -24,7 +24,7 @@ define( [
 "use strict";
 
 var
-	version = "3.1.1",
+	version = "3.2.0",
 
 	// Define a local copy of jQuery
 	jQuery = function( selector, context ) {
@@ -172,11 +172,11 @@ jQuery.extend = jQuery.fn.extend = function() {
 
 				// Recurse if we're merging plain objects or arrays
 				if ( deep && copy && ( jQuery.isPlainObject( copy ) ||
-					( copyIsArray = jQuery.isArray( copy ) ) ) ) {
+					( copyIsArray = Array.isArray( copy ) ) ) ) {
 
 					if ( copyIsArray ) {
 						copyIsArray = false;
-						clone = src && jQuery.isArray( src ) ? src : [];
+						clone = src && Array.isArray( src ) ? src : [];
 
 					} else {
 						clone = src && jQuery.isPlainObject( src ) ? src : {};
@@ -215,8 +215,6 @@ jQuery.extend( {
 		return jQuery.type( obj ) === "function";
 	},
 
-	isArray: Array.isArray,
-
 	isWindow: function( obj ) {
 		return obj != null && obj === obj.window;
 	},
@@ -291,10 +289,6 @@ jQuery.extend( {
 		return string.replace( rmsPrefix, "ms-" ).replace( rdashAlpha, fcamelCase );
 	},
 
-	nodeName: function( elem, name ) {
-		return elem.nodeName && elem.nodeName.toLowerCase() === name.toLowerCase();
-	},
-
 	each: function( obj, callback ) {
 		var length, i = 0;
 

src/core/init.js

@@ -3,6 +3,7 @@ define( [
 	"../core",
 	"../var/document",
 	"./var/rsingleTag",
+
 	"../traversing/findFilter"
 ], function( jQuery, document, rsingleTag ) {
 

src/core/nodeName.js

+define( function() {
+
+"use strict";
+
+function nodeName( elem, name ) {
+
+  return elem.nodeName && elem.nodeName.toLowerCase() === name.toLowerCase();
+
+};
+
+return nodeName;
+
+} );

src/core/ready-no-deferred.js

@@ -32,15 +32,6 @@ jQuery.extend( {
 	// the ready event fires. See #6781
 	readyWait: 1,
 
-	// Hold (or release) the ready event
-	holdReady: function( hold ) {
-		if ( hold ) {
-			jQuery.readyWait++;
-		} else {
-			jQuery.ready( true );
-		}
-	},
-
 	ready: function( wait ) {
 
 		// Abort if there are pending holds or we're already ready

src/core/ready.js

@@ -34,15 +34,6 @@ jQuery.extend( {
 	// the ready event fires. See #6781
 	readyWait: 1,
 
-	// Hold (or release) the ready event
-	holdReady: function( hold ) {
-		if ( hold ) {
-			jQuery.readyWait++;
-		} else {
-			jQuery.ready( true );
-		}
-	},
-
 	// Handle when the DOM is ready
 	ready: function( wait ) {
 

src/css.js

@@ -28,6 +28,7 @@ var
 	// except "table", "table-cell", or "table-caption"
 	// See here for display values: https://developer.mozilla.org/en-US/docs/CSS/display
 	rdisplayswap = /^(none|table(?!-c[ea]).+)/,
+	rcustomProp = /^--/,
 	cssShow = { position: "absolute", visibility: "hidden", display: "block" },
 	cssNormalTransform = {
 		letterSpacing: "0",
@@ -57,6 +58,16 @@ function vendorPropName( name ) {
 	}
 }
 
+// Return a property mapped along what jQuery.cssProps suggests or to
+// a vendor prefixed property.
+function finalPropName( name ) {
+	var ret = jQuery.cssProps[ name ];
+	if ( !ret ) {
+		ret = jQuery.cssProps[ name ] = vendorPropName( name ) || name;
+	}
+	return ret;
+}
+
 function setPositiveNumber( elem, value, subtract ) {
 
 	// Any relative (+/-) values have already been
@@ -117,43 +128,24 @@ function augmentWidthOrHeight( elem, name, extra, isBorderBox, styles ) {
 
 function getWidthOrHeight( elem, name, extra ) {
 
-	// Start with offset property, which is equivalent to the border-box value
-	var val,
-		valueIsBorderBox = true,
+	// Start with computed style
+	var valueIsBorderBox,
 		styles = getStyles( elem ),
+		val = curCSS( elem, name, styles ),
 		isBorderBox = jQuery.css( elem, "boxSizing", false, styles ) === "border-box";
 
-	// Support: IE <=11 only
-	// Running getBoundingClientRect on a disconnected node
-	// in IE throws an error.
-	if ( elem.getClientRects().length ) {
-		val = elem.getBoundingClientRect()[ name ];
+	// Computed unit is not pixels. Stop here and return.
+	if ( rnumnonpx.test( val ) ) {
+		return val;
 	}
 
-	// Some non-html elements return undefined for offsetWidth, so check for null/undefined
-	// svg - https://bugzilla.mozilla.org/show_bug.cgi?id=649285
-	// MathML - https://bugzilla.mozilla.org/show_bug.cgi?id=491668
-	if ( val <= 0 || val == null ) {
-
-		// Fall back to computed then uncomputed css if necessary
-		val = curCSS( elem, name, styles );
-		if ( val < 0 || val == null ) {
-			val = elem.style[ name ];
-		}
-
-		// Computed unit is not pixels. Stop here and return.
-		if ( rnumnonpx.test( val ) ) {
-			return val;
-		}
-
-		// Check for style in case a browser which returns unreliable values
-		// for getComputedStyle silently falls back to the reliable elem.style
-		valueIsBorderBox = isBorderBox &&
-			( support.boxSizingReliable() || val === elem.style[ name ] );
+	// Check for style in case a browser which returns unreliable values
+	// for getComputedStyle silently falls back to the reliable elem.style
+	valueIsBorderBox = isBorderBox &&
+		( support.boxSizingReliable() || val === elem.style[ name ] );
 
-		// Normalize "", auto, and prepare for extra
-		val = parseFloat( val ) || 0;
-	}
+	// Normalize "", auto, and prepare for extra
+	val = parseFloat( val ) || 0;
 
 	// Use the active box-sizing model to add/subtract irrelevant styles
 	return ( val +
@@ -218,10 +210,15 @@ jQuery.extend( {
 		// Make sure that we're working with the right name
 		var ret, type, hooks,
 			origName = jQuery.camelCase( name ),
+			isCustomProp = rcustomProp.test( name ),
 			style = elem.style;
 
-		name = jQuery.cssProps[ origName ] ||
-			( jQuery.cssProps[ origName ] = vendorPropName( origName ) || origName );
+		// Make sure that we're working with the right name. We don't
+		// want to query the value if it is a CSS custom property
+		// since they are user-defined.
+		if ( !isCustomProp ) {
+			name = finalPropName( origName );
+		}
 
 		// Gets hook for the prefixed version, then unprefixed version
 		hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ];
@@ -257,7 +254,11 @@ jQuery.extend( {
 			if ( !hooks || !( "set" in hooks ) ||
 				( value = hooks.set( elem, value, extra ) ) !== undefined ) {
 
-				style[ name ] = value;
+				if ( isCustomProp ) {
+					style.setProperty( name, value );
+				} else {
+					style[ name ] = value;
+				}
 			}
 
 		} else {
@@ -276,11 +277,15 @@ jQuery.extend( {
 
 	css: function( elem, name, extra, styles ) {
 		var val, num, hooks,
-			origName = jQuery.camelCase( name );
+			origName = jQuery.camelCase( name ),
+			isCustomProp = rcustomProp.test( name );
 
-		// Make sure that we're working with the right name
-		name = jQuery.cssProps[ origName ] ||
-			( jQuery.cssProps[ origName ] = vendorPropName( origName ) || origName );
+		// Make sure that we're working with the right name. We don't
+		// want to modify the value if it is a CSS custom property
+		// since they are user-defined.
+		if ( !isCustomProp ) {
+			name = finalPropName( origName );
+		}
 
 		// Try prefixed name followed by the unprefixed name
 		hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ];
@@ -305,6 +310,7 @@ jQuery.extend( {
 			num = parseFloat( val );
 			return extra === true || isFinite( num ) ? num || 0 : val;
 		}
+
 		return val;
 	}
 } );
@@ -404,7 +410,7 @@ jQuery.fn.extend( {
 				map = {},
 				i = 0;
 
-			if ( jQuery.isArray( name ) ) {
+			if ( Array.isArray( name ) ) {
 				styles = getStyles( elem );
 				len = name.length;
 

src/css/curCSS.js

@@ -15,8 +15,9 @@ function curCSS( elem, name, computed ) {
 
 	computed = computed || getStyles( elem );
 
-	// Support: IE <=9 only
-	// getPropertyValue is only needed for .css('filter') (#12537)
+	// getPropertyValue is needed for:
+	//   .css('filter') (IE 9 only, #12537)
+	//   .css('--customProperty) (#3144)
 	if ( computed ) {
 		ret = computed.getPropertyValue( name ) || computed[ name ];
 

src/data/Data.js

@@ -115,7 +115,7 @@ Data.prototype = {
 		if ( key !== undefined ) {
 
 			// Support array or space separated string of keys
-			if ( jQuery.isArray( key ) ) {
+			if ( Array.isArray( key ) ) {
 
 				// If key is an array of keys...
 				// We always set camelCase keys, so remove that.

src/deferred.js

@@ -13,7 +13,7 @@ function Thrower( ex ) {
 	throw ex;
 }
 
-function adoptValue( value, resolve, reject ) {
+function adoptValue( value, resolve, reject, noValue ) {
 	var method;
 
 	try {
@@ -29,9 +29,10 @@ function adoptValue( value, resolve, reject ) {
 		// Other non-thenables
 		} else {
 
-			// Support: Android 4.0 only
-			// Strict mode functions invoked without .call/.apply get global-object context
-			resolve.call( undefined, value );
+			// Control `resolve` arguments by letting Array#slice cast boolean `noValue` to integer:
+			// * false: [ value ].slice( 0 ) => resolve( value )
+			// * true: [ value ].slice( 1 ) => resolve()
+			resolve.apply( undefined, [ value ].slice( noValue ) );
 		}
 
 	// For Promises/A+, convert exceptions into rejections
@@ -41,7 +42,7 @@ function adoptValue( value, resolve, reject ) {
 
 		// Support: Android 4.0 only
 		// Strict mode functions invoked without .call/.apply get global-object context
-		reject.call( undefined, value );
+		reject.apply( undefined, [ value ] );
 	}
 }
 
@@ -366,7 +367,8 @@ jQuery.extend( {
 
 		// Single- and empty arguments are adopted like Promise.resolve
 		if ( remaining <= 1 ) {
-			adoptValue( singleValue, master.done( updateFunc( i ) ).resolve, master.reject );
+			adoptValue( singleValue, master.done( updateFunc( i ) ).resolve, master.reject,
+				!remaining );
 
 			// Use .then() to unwrap secondary thenables (cf. gh-3000)
 			if ( master.state() === "pending" ||

src/deprecated.js

 define( [
-	"./core"
-], function( jQuery ) {
+	"./core",
+	"./core/nodeName"
+], function( jQuery, nodeName ) {
 
 "use strict";
 
@@ -22,9 +23,18 @@ jQuery.fn.extend( {
 		return arguments.length === 1 ?
 			this.off( selector, "**" ) :
 			this.off( types, selector || "**", fn );
+	},
+	holdReady: function( hold ) {
+		if ( hold ) {
+			jQuery.readyWait++;
+		} else {
+			jQuery.ready( true );
+		}
 	}
 } );
 
+jQuery.isArray = Array.isArray;
 jQuery.parseJSON = JSON.parse;
+jQuery.nodeName = nodeName;
 
 } );

src/effects.js

@@ -23,13 +23,18 @@ define( [
 "use strict";
 
 var
-	fxNow, timerId,
+	fxNow, inProgress,
 	rfxtypes = /^(?:toggle|show|hide)$/,
 	rrun = /queueHooks$/;
 
-function raf() {
-	if ( timerId ) {
-		window.requestAnimationFrame( raf );
+function schedule() {
+	if ( inProgress ) {
+		if ( document.hidden === false && window.requestAnimationFrame ) {
+			window.requestAnimationFrame( schedule );
+		} else {
+			window.setTimeout( schedule, jQuery.fx.interval );
+		}
+
 		jQuery.fx.tick();
 	}
 }
@@ -256,7 +261,7 @@ function propFilter( props, specialEasing ) {
 		name = jQuery.camelCase( index );
 		easing = specialEasing[ name ];
 		value = props[ index ];
-		if ( jQuery.isArray( value ) ) {
+		if ( Array.isArray( value ) ) {
 			easing = value[ 1 ];
 			value = props[ index ] = value[ 0 ];
 		}
@@ -315,12 +320,19 @@ function Animation( elem, properties, options ) {
 
 			deferred.notifyWith( elem, [ animation, percent, remaining ] );
 
+			// If there's more to do, yield
 			if ( percent < 1 && length ) {
 				return remaining;
-			} else {
-				deferred.resolveWith( elem, [ animation ] );
-				return false;
 			}
+
+			// If this was an empty animation, synthesize a final progress notification
+			if ( !length ) {
+				deferred.notifyWith( elem, [ animation, 1, 0 ] );
+			}
+
+			// Resolve the animation and report its conclusion
+			deferred.resolveWith( elem, [ animation ] );
+			return false;
 		},
 		animation = deferred.promise( {
 			elem: elem,
@@ -385,6 +397,13 @@ function Animation( elem, properties, options ) {
 		animation.opts.start.call( elem, animation );
 	}
 
+	// Attach callbacks from options
+	animation
+		.progress( animation.opts.progress )
+		.done( animation.opts.done, animation.opts.complete )
+		.fail( animation.opts.fail )
+		.always( animation.opts.always );
+
 	jQuery.fx.timer(
 		jQuery.extend( tick, {
 			elem: elem,
@@ -393,11 +412,7 @@ function Animation( elem, properties, options ) {
 		} )
 	);
 
-	// attach callbacks from options
-	return animation.progress( animation.opts.progress )
-		.done( animation.opts.done, animation.opts.complete )
-		.fail( animation.opts.fail )
-		.always( animation.opts.always );
+	return animation;
 }
 
 jQuery.Animation = jQuery.extend( Animation, {
@@ -448,8 +463,8 @@ jQuery.speed = function( speed, easing, fn ) {
 		easing: fn && easing || easing && !jQuery.isFunction( easing ) && easing
 	};
 
-	// Go to the end state if fx are off or if document is hidden
-	if ( jQuery.fx.off || document.hidden ) {
+	// Go to the end state if fx are off
+	if ( jQuery.fx.off ) {
 		opt.duration = 0;
 
 	} else {
@@ -641,7 +656,7 @@ jQuery.fx.tick = function() {
 	for ( ; i < timers.length; i++ ) {
 		timer = timers[ i ];
 
-		// Checks the timer has not already been removed
+		// Run the timer and safely remove it when done (allowing for external removal)
 		if ( !timer() && timers[ i ] === timer ) {
 			timers.splice( i--, 1 );
 		}
@@ -655,30 +670,21 @@ jQuery.fx.tick = function() {
 
 jQuery.fx.timer = function( timer ) {
 	jQuery.timers.push( timer );
-	if ( timer() ) {
-		jQuery.fx.start();
-	} else {
-		jQuery.timers.pop();
-	}
+	jQuery.fx.start();
 };
 
 jQuery.fx.interval = 13;
 jQuery.fx.start = function() {
-	if ( !timerId ) {
-		timerId = window.requestAnimationFrame ?
-			window.requestAnimationFrame( raf ) :
-			window.setInterval( jQuery.fx.tick, jQuery.fx.interval );
+	if ( inProgress ) {
+		return;
 	}
+
+	inProgress = true;
+	schedule();
 };
 
 jQuery.fx.stop = function() {
-	if ( window.cancelAnimationFrame ) {
-		window.cancelAnimationFrame( timerId );
-	} else {
-		window.clearInterval( timerId );
-	}
-
-	timerId = null;
+	inProgress = null;
 };
 
 jQuery.fx.speeds = {

src/event.js

@@ -3,12 +3,15 @@ define( [
 	"./var/document",
 	"./var/documentElement",
 	"./var/rnothtmlwhite",
+	"./var/rcheckableType",
 	"./var/slice",
 	"./data/var/dataPriv",
+	"./core/nodeName",
 
 	"./core/init",
 	"./selector"
-], function( jQuery, document, documentElement, rnothtmlwhite, slice, dataPriv ) {
+], function( jQuery, document, documentElement, rnothtmlwhite,
+             rcheckableType, slice, dataPriv, nodeName ) {
 
 "use strict";
 
@@ -474,9 +477,11 @@ jQuery.event = {
 		},
 		click: {
 
-			// For checkbox, fire native event so checked state will be right
+			// For checkable types, fire native event so checked state will be right
 			trigger: function() {
-				if ( this.type === "checkbox" && this.click && jQuery.nodeName( this, "input" ) ) {
+				if ( rcheckableType.test( this.type ) &&
+					this.click && nodeName( this, "input" ) ) {
+
 					this.click();
 					return false;
 				}
@@ -484,7 +489,7 @@ jQuery.event = {
 
 			// For cross-browser consistency, don't fire native .click() on links
 			_default: function( event ) {
-				return jQuery.nodeName( event.target, "a" );
+				return nodeName( event.target, "a" );
 			}
 		},
 

src/manipulation.js

@@ -2,8 +2,8 @@ define( [
 	"./core",
 	"./var/concat",
 	"./var/push",
+	"./var/rcheckableType",
 	"./core/access",
-	"./manipulation/var/rcheckableType",
 	"./manipulation/var/rtagName",
 	"./manipulation/var/rscriptType",
 	"./manipulation/wrapMap",
@@ -16,15 +16,16 @@ define( [
 	"./data/var/dataUser",
 	"./data/var/acceptData",
 	"./core/DOMEval",
+	"./core/nodeName",
 
 	"./core/init",
 	"./traversing",
 	"./selector",
 	"./event"
-], function( jQuery, concat, push, access,
-	rcheckableType, rtagName, rscriptType,
+], function( jQuery, concat, push, rcheckableType,
+	access, rtagName, rscriptType,
 	wrapMap, getAll, setGlobalEval, buildFragment, support,
-	dataPriv, dataUser, acceptData, DOMEval ) {
+	dataPriv, dataUser, acceptData, DOMEval, nodeName ) {
 
 "use strict";
 
@@ -47,11 +48,12 @@ var
 	rscriptTypeMasked = /^true\/(.*)/,
 	rcleanScript = /^\s*<!(?:\[CDATA\[|--)|(?:\]\]|--)>\s*$/g;
 
+// Prefer a tbody over its parent table for containing new rows
 function manipulationTarget( elem, content ) {
-	if ( jQuery.nodeName( elem, "table" ) &&
-		jQuery.nodeName( content.nodeType !== 11 ? content : content.firstChild, "tr" ) ) {
+	if ( nodeName( elem, "table" ) &&
+		nodeName( content.nodeType !== 11 ? content : content.firstChild, "tr" ) ) {
 
-		return elem.getElementsByTagName( "tbody" )[ 0 ] || elem;
+		return jQuery( ">tbody", elem )[ 0 ] || elem;
 	}
 
 	return elem;

src/manipulation/getAll.js

 define( [
-	"../core"
-], function( jQuery ) {
+	"../core",
+	"../core/nodeName"
+], function( jQuery, nodeName ) {
 
 "use strict";
 
@@ -20,7 +21,7 @@ function getAll( context, tag ) {
 		ret = [];
 	}
 
-	if ( tag === undefined || tag && jQuery.nodeName( context, tag ) ) {
+	if ( tag === undefined || tag && nodeName( context, tag ) ) {
 		return jQuery.merge( [ context ], ret );
 	}
 

src/offset.js

@@ -7,21 +7,16 @@ define( [
 	"./css/curCSS",
 	"./css/addGetHookIf",
 	"./css/support",
+	"./core/nodeName",
 
 	"./core/init",
 	"./css",
 	"./selector" // contains
-], function( jQuery, access, document, documentElement, rnumnonpx, curCSS, addGetHookIf, support ) {
+], function( jQuery, access, document, documentElement, rnumnonpx,
+             curCSS, addGetHookIf, support, nodeName ) {
 
 "use strict";
 
-/**
- * Gets a window from an element
- */
-function getWindow( elem ) {
-	return jQuery.isWindow( elem ) ? elem : elem.nodeType === 9 && elem.defaultView;
-}
-
 jQuery.offset = {
 	setOffset: function( elem, options, i ) {
 		var curPosition, curLeft, curCSSTop, curTop, curOffset, curCSSLeft, calculatePosition,
@@ -86,13 +81,14 @@ jQuery.fn.extend( {
 				} );
 		}
 
-		var docElem, win, rect, doc,
+		var doc, docElem, rect, win,
 			elem = this[ 0 ];
 
 		if ( !elem ) {
 			return;
 		}
 
+		// Return zeros for disconnected and hidden (display: none) elements (gh-2310)
 		// Support: IE <=11 only
 		// Running getBoundingClientRect on a
 		// disconnected node in IE throws an error
@@ -102,20 +98,14 @@ jQuery.fn.extend( {
 
 		rect = elem.getBoundingClientRect();
 
-		// Make sure element is not hidden (display: none)
-		if ( rect.width || rect.height ) {
-			doc = elem.ownerDocument;
-			win = getWindow( doc );
-			docElem = doc.documentElement;
-
-			return {
-				top: rect.top + win.pageYOffset - docElem.clientTop,
-				left: rect.left + win.pageXOffset - docElem.clientLeft
-			};
-		}
+		doc = elem.ownerDocument;
+		docElem = doc.documentElement;
+		win = doc.defaultView;
 
-		// Return zeros for disconnected and hidden elements (gh-2310)
-		return rect;
+		return {
+			top: rect.top + win.pageYOffset - docElem.clientTop,
+			left: rect.left + win.pageXOffset - docElem.clientLeft
+		};
 	},
 
 	position: function() {
@@ -141,7 +131,7 @@ jQuery.fn.extend( {
 
 			// Get correct offsets
 			offset = this.offset();
-			if ( !jQuery.nodeName( offsetParent[ 0 ], "html" ) ) {
+			if ( !nodeName( offsetParent[ 0 ], "html" ) ) {
 				parentOffset = offsetParent.offset();
 			}
 
@@ -188,7 +178,14 @@ jQuery.each( { scrollLeft: "pageXOffset", scrollTop: "pageYOffset" }, function(
 
 	jQuery.fn[ method ] = function( val ) {
 		return access( this, function( elem, method, val ) {
-			var win = getWindow( elem );
+
+			// Coalesce documents and windows
+			var win;
+			if ( jQuery.isWindow( elem ) ) {
+				win = elem;
+			} else if ( elem.nodeType === 9 ) {
+				win = elem.defaultView;
+			}
 
 			if ( val === undefined ) {
 				return win ? win[ prop ] : elem[ method ];

src/queue.js

@@ -17,7 +17,7 @@ jQuery.extend( {
 
 			// Speed up dequeue by getting out quickly if this is just a lookup
 			if ( data ) {
-				if ( !queue || jQuery.isArray( data ) ) {
+				if ( !queue || Array.isArray( data ) ) {
 					queue = dataPriv.access( elem, type, jQuery.makeArray( data ) );
 				} else {
 					queue.push( data );

src/serialize.js

 define( [
 	"./core",
-	"./manipulation/var/rcheckableType",
+	"./var/rcheckableType",
 	"./core/init",
 	"./traversing", // filter
 	"./attributes/prop"
@@ -17,7 +17,7 @@ var
 function buildParams( prefix, obj, traditional, add ) {
 	var name;
 
-	if ( jQuery.isArray( obj ) ) {
+	if ( Array.isArray( obj ) ) {
 
 		// Serialize array item.
 		jQuery.each( obj, function( i, v ) {
@@ -69,7 +69,7 @@ jQuery.param = function( a, traditional ) {
 		};
 
 	// If an array was passed in, assume that it is an array of form elements.
-	if ( jQuery.isArray( a ) || ( a.jquery && !jQuery.isPlainObject( a ) ) ) {
+	if ( Array.isArray( a ) || ( a.jquery && !jQuery.isPlainObject( a ) ) ) {
 
 		// Serialize the form elements
 		jQuery.each( a, function() {
@@ -115,7 +115,7 @@ jQuery.fn.extend( {
 				return null;
 			}
 
-			if ( jQuery.isArray( val ) ) {
+			if ( Array.isArray( val ) ) {
 				return jQuery.map( val, function( val ) {
 					return { name: elem.name, value: val.replace( rCRLF, "\r\n" ) };
 				} );

src/traversing.js

@@ -4,10 +4,12 @@ define( [
 	"./traversing/var/dir",
 	"./traversing/var/siblings",
 	"./traversing/var/rneedsContext",
+	"./core/nodeName",
+
 	"./core/init",
 	"./traversing/findFilter",
 	"./selector"
-], function( jQuery, indexOf, dir, siblings, rneedsContext ) {
+], function( jQuery, indexOf, dir, siblings, rneedsContext, nodeName ) {
 
 "use strict";
 
@@ -143,7 +145,18 @@ jQuery.each( {
 		return siblings( elem.firstChild );
 	},
 	contents: function( elem ) {
-		return elem.contentDocument || jQuery.merge( [], elem.childNodes );
+        if ( nodeName( elem, "iframe" ) ) {
+            return elem.contentDocument;
+        }
+
+        // Support: IE 9 - 11 only, iOS 7 only, Android Browser <=4.3 only
+        // Treat the template element as a regular one in browsers that
+        // don't support it.
+        if ( nodeName( elem, "template" ) ) {
+            elem = elem.content || elem;
+        }
+
+        return jQuery.merge( [], elem.childNodes );
 	}
 }, function( name, fn ) {
 	jQuery.fn[ name ] = function( until, selector ) {