From 37a4100220ed19e003b39e4c3c23acbfe207fea1 Mon Sep 17 00:00:00 2001
From: Megan Rogge <merogge@microsoft.com>
Date: Fri, 8 Oct 2021 07:45:48 -0700
Subject: [PATCH] throw if activate webgl called on safari

---
 addons/xterm-addon-webgl/src/WebglAddon.ts | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/addons/xterm-addon-webgl/src/WebglAddon.ts b/addons/xterm-addon-webgl/src/WebglAddon.ts
index ad2393d8..b8bcf5b1 100644
--- a/addons/xterm-addon-webgl/src/WebglAddon.ts
+++ b/addons/xterm-addon-webgl/src/WebglAddon.ts
@@ -8,6 +8,7 @@ import { WebglRenderer } from './WebglRenderer';
 import { ICharacterJoinerService, IRenderService } from 'browser/services/Services';
 import { IColorSet } from 'browser/Types';
 import { EventEmitter } from 'common/EventEmitter';
+import { isSafari } from 'common/Platform';
 
 export class WebglAddon implements ITerminalAddon {
   private _terminal?: Terminal;
@@ -23,6 +24,9 @@ export class WebglAddon implements ITerminalAddon {
     if (!terminal.element) {
       throw new Error('Cannot activate WebglAddon before Terminal.open');
     }
+    if (isSafari) {
+      throw new Error('Webgl is not currently supported on Safari');
+    }
     this._terminal = terminal;
     const renderService: IRenderService = (terminal as any)._core._renderService;
     const characterJoinerService: ICharacterJoinerService = (terminal as any)._core._characterJoinerService;