From d69cf702f3d6668736711113d42ae9e3025d41ea Mon Sep 17 00:00:00 2001
From: Jonas Jenwald <jonas.jenwald@gmail.com>
Date: Sat, 20 Feb 2021 14:43:43 +0100
Subject: [PATCH] Add a `this`-bound method for `InternalRenderTask.cancel`

This is similar to the other methods, and the only reason for this not having been done originally is that the `cancel` functionality is a later addition.
---
 src/display/api.js | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/display/api.js b/src/display/api.js
index d3a9d6362..5bdcc7c87 100644
--- a/src/display/api.js
+++ b/src/display/api.js
@@ -2903,6 +2903,7 @@ const InternalRenderTask = (function InternalRenderTaskClosure() {
       this.capability = createPromiseCapability();
       this.task = new RenderTask(this);
       // caching this-bound methods
+      this._cancelBound = this.cancel.bind(this);
       this._continueBound = this._continue.bind(this);
       this._scheduleNextBound = this._scheduleNext.bind(this);
       this._nextBound = this._next.bind(this);
@@ -3017,10 +3018,10 @@ const InternalRenderTask = (function InternalRenderTaskClosure() {
     _scheduleNext() {
       if (this._useRequestAnimationFrame) {
         window.requestAnimationFrame(() => {
-          this._nextBound().catch(this.cancel.bind(this));
+          this._nextBound().catch(this._cancelBound);
         });
       } else {
-        Promise.resolve().then(this._nextBound).catch(this.cancel.bind(this));
+        Promise.resolve().then(this._nextBound).catch(this._cancelBound);
       }
     }