src/offset.js

@@ -103,6 +103,9 @@ jQuery.fn.extend({
 				left: rect.left + win.pageXOffset - docElem.clientLeft
 			};
 		}
+
+		// Return zeros for disconnected and hidden elements (gh-2310)
+		return rect;
 	},
 
 	position: function() {

test/unit/core.js

@@ -36,6 +36,10 @@ test("jQuery()", function() {
 		expected++;
 		attrObj["width"] = 10;
 	}
+	if ( jQuery.fn.offset ) {
+		expected++;
+		attrObj["offset"] = { "top": 1, "left": 1 };
+	}
 	if ( jQuery.fn.css ) {
 		expected += 2;
 		attrObj["css"] = { "paddingLeft": 1, "paddingRight": 1 };
@@ -101,12 +105,16 @@ test("jQuery()", function() {
 	elem = jQuery("\n\n<em>world</em>")[0];
 	equal( elem.nodeName.toLowerCase(), "em", "leading newlines" );
 
-	elem = jQuery( "<div/>", attrObj );
+	elem = jQuery("<div/>", attrObj );
 
 	if ( jQuery.fn.width ) {
 		equal( elem[0].style.width, "10px", "jQuery() quick setter width");
 	}
 
+	if ( jQuery.fn.offset ) {
+		equal( elem[0].style.top, "1px", "jQuery() quick setter offset");
+	}
+
 	if ( jQuery.fn.css ) {
 		equal( elem[0].style.paddingLeft, "1px", "jQuery quick setter css");
 		equal( elem[0].style.paddingRight, "1px", "jQuery quick setter css");

test/unit/offset.js

@@ -48,30 +48,24 @@ test("empty set", function() {
 });
 
 test("disconnected element", function() {
-	expect(1);
-
-	var result;
+	expect( 2 );
 
-	try {
-		result = jQuery( document.createElement("div") ).offset();
-	} catch ( e ) {}
+	var result = jQuery( document.createElement( "div" ) ).offset();
 
-	ok( !result, "no position for disconnected element" );
+	equal( result.top, 0, "Retrieving offset on disconnected elements returns zeros (gh-2310)" );
+	equal( result.left, 0, "Retrieving offset on disconnected elements returns zeros (gh-2310)" );
 });
 
 test("hidden (display: none) element", function() {
-	expect(1);
-
-	var result,
-		node = jQuery("<div style='display: none' />").appendTo("#qunit-fixture");
+	expect( 2 );
 
-	try {
+	var node = jQuery("<div style='display: none' />").appendTo("#qunit-fixture"),
 		result = node.offset();
-	} catch ( e ) {}
 
 	node.remove();
 
-	ok( !result, "no position for hidden (display: none) element" );
+	equal( result.top, 0, "Retrieving offset on hidden elements returns zeros (gh-2310)" );
+	equal( result.left, 0, "Retrieving offset on hidden elements returns zeros (gh-2310)" );
 });
 
 testIframe("offset/absolute", "absolute", function($, iframe) {