From 092d4ff1b32dcf2f6c6cba6f22d65e01e8abefdb Mon Sep 17 00:00:00 2001
From: GKraats <vd.kraats@hccnet.nl>
Date: Wed, 12 Jun 2024 19:17:31 +0200
Subject: [PATCH] Aquarium fails if webgl2 not available

---
 tdl/webgl.js | 20 +++++++++++---------
 1 file changed, 11 insertions(+), 9 deletions(-)

diff --git a/tdl/webgl.js b/tdl/webgl.js
index 8e3d8867..9bfb1c45 100644
--- a/tdl/webgl.js
+++ b/tdl/webgl.js
@@ -98,18 +98,16 @@ tdl.webgl.OTHER_PROBLEM = '' +
  */
 tdl.webgl.setupWebGL = function(canvas, opt_attribs, opt_onError, opt_preferredContextType) {
   function handleCreationError(msg) {
-    var container = canvas.parentNode;
-    if (container) {
-      var str = window.WebGLRenderingContext ?
-           tdl.webgl.OTHER_PROBLEM :
-           tdl.webgl.GET_A_WEBGL_BROWSER;
-      if (msg) {
-        str += "<br/><br/>Status: " + msg;
-      }
-      container.innerHTML = tdl.webgl.makeFailHTML(str);
+    str = window.WebGLRenderingContext ?
+         tdl.webgl.OTHER_PROBLEM :
+         tdl.webgl.GET_A_WEBGL_BROWSER;
+    if (msg) {
+      str += "<br/><br/>Status: " + msg;
     }
   };
 
+  var str = "";
+
   opt_onError = opt_onError || handleCreationError;
 
   if (canvas.addEventListener) {
@@ -131,6 +129,10 @@ tdl.webgl.setupWebGL = function(canvas, opt_attribs, opt_onError, opt_preferredC
       }, false);
     }
   } else {
+    var container = canvas.parentNode;
+    if (container) {
+      container.innerHTML = tdl.webgl.makeFailHTML(str);
+    }
     if (!window.WebGLRenderingContext) {
       opt_onError("");
     }