fix: Validate if WebGLRenderingContext exists before capturing it (#1777)

* Update webgl.ts

---------

Co-authored-by: Paul D'Ambra <paul.dambra@gmail.com>
Co-authored-by: Justin Halsall <Juice10@users.noreply.github.com>

.changeset/healthy-glasses-shout.md

@@ -0,0 +1,5 @@
+---
+"@rrweb/record": patch
+---
+
+Validate if WebGLRenderingContext exists before capturing it

packages/rrweb/src/record/observers/canvas/webgl.ts

@@ -95,6 +95,7 @@ export default function initCanvasWebGLMutationObserver(
 ): listenerHandler {
   const handlers: listenerHandler[] = [];
 
+  if (typeof win.WebGLRenderingContext !== 'undefined') {
     handlers.push(
       ...patchGLPrototype(
         win.WebGLRenderingContext.prototype,
@@ -105,6 +106,7 @@ export default function initCanvasWebGLMutationObserver(
         win,
       ),
     );
+  }
 
   if (typeof win.WebGL2RenderingContext !== 'undefined') {
     handlers.push(