Fix: Error with entry file paths beginning with ./

src/index.js

@@ -22,6 +22,9 @@ export default function nodeResolve ( options ) {
 		resolveId ( importee, importer ) {
 			if ( /\0/.test( importee ) ) return null; // ignore IDs with null character, these belong to other plugins
 
+			// disregard entry module
+			if ( !importer ) return null;
+
 			let parts = importee.split( /[\/\\]/ );
 			let id = parts.shift();
 
@@ -35,9 +38,6 @@ export default function nodeResolve ( options ) {
 
 			if ( skip !== true && ~skip.indexOf( id ) ) return null;
 
-			// disregard entry module
-			if ( !importer ) return null;
-
 			return new Promise( ( accept, reject ) => {
 				resolveId(
 					importee,

test/test.js

@@ -324,4 +324,16 @@ describe( 'rollup-plugin-node-resolve', function () {
 			assert.equal( result, null );
 		});
 	});
+
+	it( 'supports ./ in entry filename', () => {
+		return rollup.rollup({
+			entry: './samples/jsnext/main.js',
+			plugins: [
+				nodeResolve({ jsnext: true })
+			]
+		}).then( executeBundle ).then( module => {
+			assert.equal( module.exports, '2H' );
+		});
+	});
+
 });