From 3220e5b1b5007a532ce7c2d41fcc31d6d63df3d3 Mon Sep 17 00:00:00 2001
From: Sotiri Bakagiannis <sotirios.bakagiannis@gmail.com>
Date: Fri, 18 Sep 2020 13:21:18 +0100
Subject: [PATCH] visual/MovieStim: deal with promise based video play

---
 js/visual/MovieStim.js | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/js/visual/MovieStim.js b/js/visual/MovieStim.js
index fc48cac..883486e 100644
--- a/js/visual/MovieStim.js
+++ b/js/visual/MovieStim.js
@@ -219,7 +219,20 @@ export class MovieStim extends VisualStim
 	play(log = false)
 	{
 		this.status = PsychoJS.Status.STARTED;
-		this._movie.play();
+
+		// As found on https://goo.gl/LdLk22
+		const playPromise = this._movie.play();
+
+		if (playPromise !== undefined)
+		{
+			playPromise.catch((error) => {
+				throw {
+					origin: 'MovieStim.play',
+					context: `when attempting to play MovieStim: ${this._name}`,
+					error
+				};
+			});
+		}
 	}