From 1d57d503ac6e5b3c890362ac81e94f2ce0be2196 Mon Sep 17 00:00:00 2001
From: zepumph <michael.kauzmann@colorado.edu>
Date: Tue, 19 May 2020 14:21:43 -0800
Subject: [PATCH] ending slash in localTestingURL is optional,
 https://github.com/phetsims/aqua/issues/90

---
 js/grunt/phet-io/generatePhetioAPI.js | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/js/grunt/phet-io/generatePhetioAPI.js b/js/grunt/phet-io/generatePhetioAPI.js
index 88b3ad2cf..ced59c9ae 100644
--- a/js/grunt/phet-io/generatePhetioAPI.js
+++ b/js/grunt/phet-io/generatePhetioAPI.js
@@ -11,13 +11,12 @@
 
 const puppeteer = require( 'puppeteer' );
 
-
 /**
  * @param {string} repo
  * @param {string} localTestingURL - the browser url to access the root of phet repos
  */
 module.exports = async ( repo, localTestingURL ) => {
-  assert( localTestingURL.endsWith( '/' ), 'localTestingURL should end in a forward slash' );
+  localTestingURL = localTestingURL.endsWith( '/' ) ? localTestingURL : `${localTestingURL}/`;
 
   return new Promise( async ( resolve, reject ) => {