diff --git a/Platforms/Graphics/.BlazorGL/ConcreteGraphicsContext.cs b/Platforms/Graphics/.BlazorGL/ConcreteGraphicsContext.cs
index 46cc9d52570..13f265bd572 100644
--- a/Platforms/Graphics/.BlazorGL/ConcreteGraphicsContext.cs
+++ b/Platforms/Graphics/.BlazorGL/ConcreteGraphicsContext.cs
@@ -25,9 +25,6 @@ internal sealed class ConcreteGraphicsContext : GraphicsContextStrategy
 
         internal ShaderProgram _shaderProgram = null;
 
-        internal bool _supportsInvalidateFramebuffer;
-        internal bool _supportsBlitFramebuffer;
-
         private Vector4 _posFixup;
 
         internal BufferBindingInfo[] _bufferBindingInfos;
@@ -81,22 +78,6 @@ public override void PlatformSetup()
 
             this._newEnabledVertexAttributes = new bool[base.Capabilities.MaxVertexBufferSlots];
 
-            // TODO: check for FramebufferObjectARB
-            if ((GL is IWebGL2RenderingContext)
-            //||  this.Capabilities.SupportsFramebufferObjectARB
-            //||  this.Capabilities.SupportsFramebufferObjectEXT
-            )
-            {
-                this._supportsBlitFramebuffer = true;
-                this._supportsInvalidateFramebuffer = true;
-            }
-            else
-            {
-                throw new PlatformNotSupportedException(
-                    "GraphicsDevice requires either ARB_framebuffer_object or EXT_framebuffer_object." +
-                    "Try updating your graphics drivers.");
-            }
-
             this._bufferBindingInfos = new BufferBindingInfo[base.Capabilities.MaxVertexBufferSlots];
             for (int i = 0; i < this._bufferBindingInfos.Length; i++)
                 this._bufferBindingInfos[i] = new BufferBindingInfo(null, null, IntPtr.Zero, 0);
@@ -1206,19 +1187,16 @@ protected override void PlatformResolveRenderTargets()
                     GL.CheckGLError();
                     ((IWebGL2RenderingContext)GL).DrawBuffer(WebGL2DrawBufferAttachmentPoint.COLOR_ATTACHMENT0 + i);
                     GL.CheckGLError();
-                    Debug.Assert(this._supportsBlitFramebuffer);
                     ((IWebGL2RenderingContext)GL).BlitFramebuffer(
                         0, 0, renderTarget.Width, renderTarget.Height,
                         0, 0, renderTarget.Width, renderTarget.Height,
                         WebGLBufferBits.COLOR, WebGLTexParam.NEAREST);
                     GL.CheckGLError();
 
-                    if (renderTarget.RenderTargetUsage == RenderTargetUsage.DiscardContents
-                    &&  this._supportsInvalidateFramebuffer)
+                    if (renderTarget.RenderTargetUsage == RenderTargetUsage.DiscardContents)
                     {
                         if (i == 0)
                         {
-                            Debug.Assert(this._supportsInvalidateFramebuffer);
                             ((IWebGL2RenderingContext)GL).InvalidateFramebuffer(WebGL2FramebufferType.READ_FRAMEBUFFER, InvalidateFramebufferAttachements);
                             GL.CheckGLError();
                         }