omit attributes for SSR – fixes #163

src/server-side-rendering/compile.js

@@ -174,6 +174,8 @@ export default function compile ( source, { filename }) {
 			let element = `<${node.name}`;
 
 			node.attributes.forEach( attribute => {
+				if ( attribute.type !== 'Attribute' ) return;
+
 				let str = ` ${attribute.name}`;
 
 				if ( attribute.value !== true ) {

test/server-side-rendering/directives/_actual.html

@@ -0,0 +1 @@
+<button>click me</button>

test/server-side-rendering/directives/_expected.html

@@ -0,0 +1 @@
+<button>click me</button>

test/server-side-rendering/directives/main.html

@@ -0,0 +1 @@
+<button on:click='set({ foo: "bar" })'>click me</button>