Misc: Drop support for older browsers; update support comments

That includes Opera 12.x, Firefox<29, Safari<6.0 and some hacks
for old Blackberry.

Closes gh-1820
Refs gh-1815

src/attributes/support.js

@@ -9,7 +9,7 @@ define([
 
 	input.type = "checkbox";
 
-	// Support: iOS<=5.1, Android<=4.2+
+	// Support: Android<4.4
 	// Default value for a checkbox should be "on"
 	support.checkOn = input.value !== "";
 

src/core.js

@@ -250,7 +250,7 @@ jQuery.extend({
 		if ( obj == null ) {
 			return obj + "";
 		}
-		// Support: Android<4.0, iOS<6 (functionish RegExp)
+		// Support: Android<4.0 (functionish RegExp)
 		return typeof obj === "object" || typeof obj === "function" ?
 			class2type[ toString.call(obj) ] || "object" :
 			typeof obj;
@@ -354,6 +354,8 @@ jQuery.extend({
 		return arr == null ? -1 : indexOf.call( arr, elem, i );
 	},
 
+	// Support: Android<4.1, PhantomJS<2
+	// push.apply(_, arraylike) throws on ancient WebKit
 	merge: function( first, second ) {
 		var len = +second.length,
 			j = 0,

src/core/init.js

@@ -69,9 +69,7 @@ var rootjQuery,
 				} else {
 					elem = document.getElementById( match[2] );
 
-					// Support: Blackberry 4.6
+					if ( elem ) {
-					// gEBID returns nodes no longer in the document (#6963)
-					if ( elem && elem.parentNode ) {
 						// Inject the element directly into the jQuery object
 						this.length = 1;
 						this[0] = elem;

src/css.js

@@ -34,7 +34,7 @@ var
 		fontWeight: "400"
 	},
 
-	cssPrefixes = [ "Webkit", "O", "Moz", "ms" ];
+	cssPrefixes = [ "Webkit", "Moz", "ms" ];
 
 // Return a css property mapped to a potentially vendor prefixed property
 function vendorPropName( style, name ) {

src/css/curCSS.js

@@ -7,8 +7,7 @@ define([
 ], function( jQuery, rnumnonpx, rmargin, getStyles ) {
 
 function curCSS( elem, name, computed ) {
-	var width, minWidth, maxWidth, ret,
+	var ret;
-		style = elem.style;
 
 	computed = computed || getStyles( elem );
 
@@ -23,33 +22,10 @@ function curCSS( elem, name, computed ) {
 		if ( ret === "" && !jQuery.contains( elem.ownerDocument, elem ) ) {
 			ret = jQuery.style( elem, name );
 		}
-
-		// Support: iOS < 6
-		// A tribute to the "awesome hack by Dean Edwards"
-		// iOS < 6 (at least) returns percentage for a larger set of values,
-		// but width seems to be reliably pixels
-		// this is against the CSSOM draft spec:
-		// http://dev.w3.org/csswg/cssom/#resolved-values
-		if ( rnumnonpx.test( ret ) && rmargin.test( name ) ) {
-
-			// Remember the original values
-			width = style.width;
-			minWidth = style.minWidth;
-			maxWidth = style.maxWidth;
-
-			// Put in the new values to get a computed value out
-			style.minWidth = style.maxWidth = style.width = ret;
-			ret = computed.width;
-
-			// Revert the changed values
-			style.width = width;
-			style.minWidth = minWidth;
-			style.maxWidth = maxWidth;
-		}
 	}
 
 	return ret !== undefined ?
-		// Support: IE
+		// Support: IE9-11+
 		// IE returns zIndex value as an integer.
 		ret + "" :
 		ret;

src/css/hiddenVisibleSelectors.js

@@ -4,11 +4,9 @@ define([
 ], function( jQuery ) {
 
 jQuery.expr.filters.hidden = function( elem ) {
-	// Support: Opera <= 12.12
-	// Opera reports offsetWidths and offsetHeights less than zero on some elements
 	// Use OR instead of AND as the element is not visible if either is true
 	// See tickets #10406 and #13132
-	return elem.offsetWidth <= 0 || elem.offsetHeight <= 0;
+	return !elem.offsetWidth || !elem.offsetHeight;
 };
 jQuery.expr.filters.visible = function( elem ) {
 	return !jQuery.expr.filters.hidden( elem );

src/css/support.js

@@ -27,10 +27,10 @@ define([
 	// so they're executed at the same time to save the second computation.
 	function computePixelPositionAndBoxSizingReliable() {
 		div.style.cssText =
-			// Support: Firefox<29, Android 2.3
+			// Support: Android 2.3
 			// Vendor-prefix box-sizing
-			"-webkit-box-sizing:border-box;-moz-box-sizing:border-box;" +
+			"-webkit-box-sizing:border-box;box-sizing:border-box;" +
-			"box-sizing:border-box;display:block;margin-top:1%;top:1%;" +
+			"display:block;margin-top:1%;top:1%;" +
 			"border:1px;padding:1px;width:4px;position:absolute";
 		div.innerHTML = "";
 		docElem.appendChild( container );
@@ -72,10 +72,10 @@ define([
 
 				// Reset CSS: box-sizing; display; margin; border; padding
 				marginDiv.style.cssText = div.style.cssText =
-					// Support: Firefox<29, Android 2.3
+					// Support: Android 2.3
 					// Vendor-prefix box-sizing
-					"-webkit-box-sizing:content-box;-moz-box-sizing:content-box;" +
+					"-webkit-box-sizing:content-box;box-sizing:content-box;" +
-					"box-sizing:content-box;display:block;margin:0;border:0;padding:0";
+					"display:block;margin:0;border:0;padding:0";
 				marginDiv.style.marginRight = marginDiv.style.width = "0";
 				div.style.width = "1px";
 				docElem.appendChild( container );

src/event.js

@@ -536,13 +536,7 @@ jQuery.event = {
 			event[ prop ] = originalEvent[ prop ];
 		}
 
-		// Support: Cordova 2.5 (WebKit) (#13255)
+		// Support: Safari 6.0+
-		// All events should have a target; Cordova deviceready doesn't
-		if ( !event.target ) {
-			event.target = document;
-		}
-
-		// Support: Safari 6.0+, Chrome<28
 		// Target should not be a text node (#504, #13143)
 		if ( event.target.nodeType === 3 ) {
 			event.target = event.target.parentNode;
@@ -709,7 +703,10 @@ jQuery.Event.prototype = {
 };
 
 // Create mouseenter/leave events using mouseover/out and event-time checks
-// Support: Chrome 15+
+// so that event delegation works in jQuery.
+// Do the same for pointerenter/pointerleave and pointerover/pointerout
+// Support: Safari<7.0
+// Safari doesn't support mouseenter/mouseleave at all.
 jQuery.each({
 	mouseenter: "mouseover",
 	mouseleave: "mouseout",

src/manipulation.js

@@ -204,7 +204,7 @@ jQuery.extend({
 
 				// Add nodes directly
 				if ( jQuery.type( elem ) === "object" ) {
-					// Support: QtWebKit, PhantomJS
+					// Support: Android<4.1, PhantomJS<2
 					// push.apply(_, arraylike) throws on ancient WebKit
 					jQuery.merge( nodes, elem.nodeType ? [ elem ] : elem );
 
@@ -227,7 +227,7 @@ jQuery.extend({
 						tmp = tmp.lastChild;
 					}
 
-					// Support: QtWebKit, PhantomJS
+					// Support: Android<4.1, PhantomJS<2
 					// push.apply(_, arraylike) throws on ancient WebKit
 					jQuery.merge( nodes, tmp.childNodes );
 
@@ -514,8 +514,8 @@ jQuery.fn.extend({
 
 						// Keep references to cloned scripts for later restoration
 						if ( hasScripts ) {
-							// Support: QtWebKit
+							// Support: Android<4.1, PhantomJS<2
-							// jQuery.merge because push.apply(_, arraylike) throws
+							// push.apply(_, arraylike) throws on ancient WebKit
 							jQuery.merge( scripts, getAll( node, "script" ) );
 						}
 					}
@@ -572,8 +572,8 @@ jQuery.each({
 			elems = i === last ? this : this.clone( true );
 			jQuery( insert[ i ] )[ original ]( elems );
 
-			// Support: QtWebKit
+			// Support: Android<4.1, PhantomJS<2
-			// .get() because push.apply(_, arraylike) throws
+			// .get() because push.apply(_, arraylike) throws on ancient WebKit
 			push.apply( ret, elems.get() );
 		}
 

src/manipulation/support.js

@@ -7,17 +7,14 @@ define([
 		div = fragment.appendChild( document.createElement( "div" ) ),
 		input = document.createElement( "input" );
 
-	// Support: Safari<=5.1
-	// Check state lost if the name is set (#11217)
 	// Support: Windows Web Apps (WWA)
 	// `name` and `type` must use .setAttribute for WWA (#14901)
 	input.setAttribute( "type", "radio" );
 	input.setAttribute( "checked", "checked" );
-	input.setAttribute( "name", "t" );
 
 	div.appendChild( input );
 
-	// Support: Safari<=5.1, Android<4.2
+	// Support: Android<4.2
 	// Older WebKit doesn't clone checked state correctly in fragments
 	support.checkClone = div.cloneNode( true ).cloneNode( true ).lastChild.checked;
 

src/offset.js

@@ -96,11 +96,7 @@ jQuery.fn.extend({
 			return box;
 		}
 
-		// Support: BlackBerry 5, iOS 3 (original iPhone)
+		box = elem.getBoundingClientRect();
-		// If we don't have gBCR, just use 0,0 rather than error
-		if ( elem.getBoundingClientRect ) {
-			box = elem.getBoundingClientRect();
-		}
 		win = getWindow( doc );
 		return {
 			top: box.top + win.pageYOffset - docElem.clientTop,

test/unit/ajax.js

@@ -1019,9 +1019,6 @@ module( "ajax", {
 			" (no cache)": false
 		},
 		function( label, cache ) {
-			// Support: Opera 12.0
-			// In Opera 12.0, XHR doesn't notify 304 back to the user properly
-			var opera = window.opera && window.opera.version();
 			jQuery.each(
 				{
 					"If-Modified-Since": "if_modified_since.php",
@@ -1041,15 +1038,9 @@ module( "ajax", {
 									ifModified: true,
 									cache: cache,
 									success: function( data, status, jqXHR ) {
-										if ( status === "success" && opera === "12.00" ) {
+										strictEqual( status, "notmodified", "Following status is 'notmodified'" );
-											strictEqual( status, "success", "Opera 12.0: Following status is 'success'" );
+										strictEqual( jqXHR.status, 304, "XHR status is 304" );
-											strictEqual( jqXHR.status, 200, "Opera 12.0: XHR status is 200, not 304" );
+										equal( data, null, "no response body is given" );
-											strictEqual( data, "", "Opera 12.0: response body is empty" );
-										} else {
-											strictEqual( status, "notmodified", "Following status is 'notmodified'" );
-											strictEqual( jqXHR.status, 304, "XHR status is 304" );
-											equal( data, null, "no response body is given" );
-										}
 									},
 									complete: function() {
 										start();

test/unit/css.js

@@ -228,8 +228,6 @@ test("css(String, Object)", function() {
 	j = jQuery("#nonnodes").contents();
 	j.css("overflow", "visible");
 	equal( j.css("overflow"), "visible", "Check node,textnode,comment css works" );
-	// opera sometimes doesn't update 'display' correctly, see #2037
-	jQuery("#t2037")[0].innerHTML = jQuery("#t2037")[0].innerHTML;
 	equal( jQuery("#t2037 .hidden").css("display"), "none", "Make sure browser thinks it is hidden" );
 
 	div = jQuery("#nothiddendiv");
@@ -790,8 +788,8 @@ test("Do not append px (#9548, #12990)", function() {
 test("css('width') and css('height') should respect box-sizing, see #11004", function() {
 	expect( 4 );
 
-	// Support: Firefox<29, Android 2.3 (Prefixed box-sizing versions).
+	// Support: Android 2.3 (-webkit-box-sizing).
-	var el_dis = jQuery("<div style='width:300px;height:300px;margin:2px;padding:2px;-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box;'>test</div>"),
+	var el_dis = jQuery("<div style='width:300px;height:300px;margin:2px;padding:2px;-webkit-box-sizing:border-box;box-sizing:border-box;'>test</div>"),
 		el = el_dis.clone().appendTo("#qunit-fixture");
 
 	equal( el.css("width"), el.css("width", el.css("width")).css("width"), "css('width') is not respecting box-sizing, see #11004");

test/unit/dimensions.js

@@ -418,8 +418,8 @@ test( "getters on non elements should return null", function() {
 test("setters with and without box-sizing:border-box", function(){
 	expect(20);
 
-	// Support: Firefox<29, Android 2.3 (Prefixed box-sizing versions).
+	// Support: Android 2.3 (-webkit-box-sizing).
-	var el_bb = jQuery("<div style='width:114px;height:114px;margin:5px;padding:3px;border:4px solid white;-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box;'>test</div>").appendTo("#qunit-fixture"),
+	var el_bb = jQuery("<div style='width:114px;height:114px;margin:5px;padding:3px;border:4px solid white;-webkit-box-sizing:border-box;box-sizing:border-box;'>test</div>").appendTo("#qunit-fixture"),
 		el = jQuery("<div style='width:100px;height:100px;margin:5px;padding:3px;border:4px solid white;'>test</div>").appendTo("#qunit-fixture"),
 		expected = 100;
 

test/unit/event.js

@@ -1417,7 +1417,7 @@ test("Submit event can be stopped (#11049)", function() {
 	form.remove();
 });
 
-// Test beforeunload event only if it supported (i.e. not Opera)
+// Test beforeunload event only if it supported.
 // Support: iOS 7+, Android<4.0
 // iOS & old Android have the window.onbeforeunload field but don't support the beforeunload
 // handler making it impossible to feature-detect the support.
@@ -2431,32 +2431,26 @@ testIframeWithCallback( "focusin from an iframe", "event/focusinCrossFrame.html"
 
 	var input = jQuery( frameDoc ).find( "#frame-input" );
 
-	if ( input.length ) {
+	// Create a focusin handler on the parent; shouldn't affect the iframe's fate
-		// Create a focusin handler on the parent; shouldn't affect the iframe's fate
+	jQuery ( "body" ).on( "focusin.iframeTest", function() {
-		jQuery ( "body" ).on( "focusin.iframeTest", function() {
+		ok( false, "fired a focusin event in the parent document" );
-			ok( false, "fired a focusin event in the parent document" );
+	});
-		});
 
-		input.on( "focusin", function() {
+	input.on( "focusin", function() {
-			ok( true, "fired a focusin event in the iframe" );
+		ok( true, "fired a focusin event in the iframe" );
-		});
+	});
 
-		// Avoid a native event; Chrome can't force focus to another frame
+	// Avoid a native event; Chrome can't force focus to another frame
-		input.trigger( "focusin" );
+	input.trigger( "focusin" );
 
-		// Must manually remove handler to avoid leaks in our data store
+	// Must manually remove handler to avoid leaks in our data store
-		input.remove();
+	input.remove();
 
-		// Be sure it was removed; nothing should happen
+	// Be sure it was removed; nothing should happen
-		input.trigger( "focusin" );
+	input.trigger( "focusin" );
 
-		// Remove body handler manually since it's outside the fixture
+	// Remove body handler manually since it's outside the fixture
-		jQuery( "body" ).off( "focusin.iframeTest" );
+	jQuery( "body" ).off( "focusin.iframeTest" );
-
-	} else {
-		// Opera 12 (pre-Blink) doesn't select anything
-		ok( true, "SOFTFAIL: no focus event fired in the iframe" );
-	}
 });
 
 testIframeWithCallback( "jQuery.ready promise", "event/promiseReady.html", function( isOk ) {

test/unit/serialize.js

@@ -110,7 +110,7 @@ test("jQuery.param() Constructed prop values", function() {
 });
 
 test("serialize()", function() {
-	expect(5);
+	expect(6);
 
 	// Add html5 elements only for serialize because selector can't yet find them on non-html5 browsers
 	jQuery("#search").after(
@@ -139,10 +139,8 @@ test("serialize()", function() {
 		"action=Test&radio2=on&check=on&hidden=&foo%5Bbar%5D=&name=name&search=search&email=dave%40jquery.com&number=43&select1=&select2=3&select3=1&select3=2&select5=3&T3=%3F%0D%0AZ&H1=x&H2=&PWD=&T1=&T2=YES&My+Name=me&S1=abc&S3=YES&S4=",
 		"Multiple form serialization as query string");
 
-	/* Temporarily disabled. Opera 10 has problems with form serialization.
 	equal( jQuery("#form, #testForm :input").serialize(),
-		"action=Test&radio2=on&check=on&hidden=&foo%5Bbar%5D=&name=name&search=search&email=dave%40jquery.com&number=43&select1=&select2=3&select3=1&select3=2&T3=%3F%0D%0AZ&H1=x&H2=&PWD=&T1=&T2=YES&My+Name=me&S1=abc&S3=YES&S4=",
+		"action=Test&radio2=on&check=on&hidden=&foo%5Bbar%5D=&name=name&search=search&email=dave%40jquery.com&number=43&select1=&select2=3&select3=1&select3=2&select5=3&T3=%3F%0D%0AZ&H1=x&H2=&PWD=&T1=&T2=YES&My+Name=me&S1=abc&S3=YES&S4=",
 		"Mixed form/input serialization as query string");
-	*/
 	jQuery("#html5email, #html5number").remove();
 });

test/unit/support.js

@@ -52,6 +52,8 @@ testIframeWithCallback( "Check CSP (https://developer.mozilla.org/en-US/docs/Sec
 		userAgent = window.navigator.userAgent;
 
 	if ( /chrome/i.test( userAgent ) ) {
+		// Catches Chrome on Android as well (i.e. the default
+		// Android browser on Android >= 4.4).
 		expected = {
 			"ajax": true,
 			"boxSizingReliable": true,
@@ -67,22 +69,6 @@ testIframeWithCallback( "Check CSP (https://developer.mozilla.org/en-US/docs/Sec
 			"radioValue": true,
 			"reliableMarginRight": true
 		};
-	} else if ( /opera.*version\/12\.1/i.test( userAgent ) ) {
-		expected = {
-			"ajax": true,
-			"boxSizingReliable": true,
-			"checkClone": true,
-			"checkOn": true,
-			"clearCloneStyle": true,
-			"cors": true,
-			"focusinBubbles": false,
-			"noCloneChecked": true,
-			"optDisabled": true,
-			"optSelected": true,
-			"pixelPosition": true,
-			"radioValue": false,
-			"reliableMarginRight": true
-		};
 	} else if ( /trident\/7\.0/i.test( userAgent ) ) {
 		expected = {
 			"ajax": true,
@@ -163,22 +149,6 @@ testIframeWithCallback( "Check CSP (https://developer.mozilla.org/en-US/docs/Sec
 			"radioValue": true,
 			"reliableMarginRight": true
 		};
-	} else if ( /5\.1(\.\d+|) safari/i.test( userAgent ) ) {
-		expected = {
-			"ajax": true,
-			"boxSizingReliable": true,
-			"checkClone": false,
-			"checkOn": false,
-			"clearCloneStyle": true,
-			"cors": true,
-			"focusinBubbles": false,
-			"noCloneChecked": true,
-			"optDisabled": true,
-			"optSelected": true,
-			"pixelPosition": false,
-			"radioValue": true,
-			"reliableMarginRight": true
-		};
 	} else if ( /firefox/i.test( userAgent ) ) {
 		expected = {
 			"ajax": true,
@@ -195,7 +165,7 @@ testIframeWithCallback( "Check CSP (https://developer.mozilla.org/en-US/docs/Sec
 			"radioValue": true,
 			"reliableMarginRight": true
 		};
-	} else if ( /iphone os (?:6|7)_/i.test( userAgent ) ) {
+	} else if ( /iphone os/i.test( userAgent ) ) {
 		expected = {
 			"ajax": true,
 			"boxSizingReliable": true,