When styles object is empty, don’t render style attribute

Author: mtribes-sdk-bot

src/util.js

@@ -46,7 +46,7 @@ export function styleObjToCss(s) {
 			str += ';';
 		}
 	}
-	return str;
+	return str || undefined;
 }
 
 

test/render.js

@@ -72,6 +72,13 @@ describe('render', () => {
 			expect(rendered).to.equal(expected);
 		});
 
+		it('should ignore empty object styles', () => {
+			let rendered = render(<div style={{}} />),
+				expected = `<div></div>`;
+
+			expect(rendered).to.equal(expected);
+		});
+
 		it('should render SVG elements', () => {
 			let rendered = render((
 				<svg>