diff --git a/Cargo.lock b/Cargo.lock
index b16bf4907a..63c6f5038a 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1853,6 +1853,7 @@ dependencies = [
  "gpu-alloc",
  "gpu-descriptor",
  "inplace_it",
+ "js-sys",
  "khronos-egl",
  "libloading 0.7.0",
  "log",
@@ -1865,6 +1866,8 @@ dependencies = [
  "raw-window-handle",
  "renderdoc-sys",
  "thiserror",
+ "wasm-bindgen",
+ "web-sys",
  "wgpu-types",
  "winapi",
  "winit",
diff --git a/wgpu-hal/src/gles/queue.rs b/wgpu-hal/src/gles/queue.rs
index 57a4c6b59f..4c83ca09e0 100644
--- a/wgpu-hal/src/gles/queue.rs
+++ b/wgpu-hal/src/gles/queue.rs
@@ -253,6 +253,8 @@ impl super::Queue {
                 gl.bind_buffer(copy_src_target, Some(src));
                 gl.bind_buffer(copy_dst_target, Some(dst));
 
+                //TODO: remove this slow path completely
+                // https://github.com/gfx-rs/wgpu/issues/2031
                 if is_index_buffer_only_element_dst {
                     let mut buffer_data = vec![0; copy.size.get() as usize];
                     gl.get_buffer_sub_data(
diff --git a/wgpu-types/src/lib.rs b/wgpu-types/src/lib.rs
index 6f061b666c..35eda06558 100644
--- a/wgpu-types/src/lib.rs
+++ b/wgpu-types/src/lib.rs
@@ -674,8 +674,8 @@ impl Limits {
     /// These default limits are guarenteed to be compatible with GLES3, and D3D11
     pub fn downlevel_defaults() -> Self {
         Self {
-            max_texture_dimension_1d: 2096,
-            max_texture_dimension_2d: 2096,
+            max_texture_dimension_1d: 2048,
+            max_texture_dimension_2d: 2048,
             max_texture_dimension_3d: 256,
             max_texture_array_layers: 256,
             max_bind_groups: 4,