diff --git a/components/script/dom/bindings/trace.rs b/components/script/dom/bindings/trace.rs
index e7377c82e698..7e6d16f59dbc 100644
--- a/components/script/dom/bindings/trace.rs
+++ b/components/script/dom/bindings/trace.rs
@@ -193,6 +193,15 @@ impl<T: JSTraceable> JSTraceable for Vec<T> {
     }
 }
 
+impl<T: JSTraceable> JSTraceable for (T, T, T, T) {
+    fn trace(&self, trc: *mut JSTracer) {
+        self.0.trace(trc);
+        self.1.trace(trc);
+        self.2.trace(trc);
+        self.3.trace(trc);
+    }
+}
+
 // XXXManishearth Check if the following three are optimized to no-ops
 // if e.trace() is a no-op (e.g it is an no_jsmanaged_fields type)
 impl<T: JSTraceable + 'static> JSTraceable for SmallVec<[T; 1]> {
diff --git a/components/script/dom/webglrenderingcontext.rs b/components/script/dom/webglrenderingcontext.rs
index 70b98ce06cd2..4223598a9850 100644
--- a/components/script/dom/webglrenderingcontext.rs
+++ b/components/script/dom/webglrenderingcontext.rs
@@ -83,6 +83,8 @@ pub struct WebGLRenderingContext {
     bound_buffer_array: MutNullableHeap<JS<WebGLBuffer>>,
     bound_buffer_element_array: MutNullableHeap<JS<WebGLBuffer>>,
     current_program: MutNullableHeap<JS<WebGLProgram>>,
+    #[ignore_heap_size_of = "Because it's small"]
+    current_vertex_attrib_0: Cell<(f32, f32, f32, f32)>,
 }
 
 impl WebGLRenderingContext {
@@ -111,6 +113,7 @@ impl WebGLRenderingContext {
                 bound_buffer_array: MutNullableHeap::new(None),
                 bound_buffer_element_array: MutNullableHeap::new(None),
                 current_program: MutNullableHeap::new(None),
+                current_vertex_attrib_0: Cell::new((0f32, 0f32, 0f32, 1f32)),
             }
         })
     }
@@ -175,6 +178,10 @@ impl WebGLRenderingContext {
             return self.webgl_error(InvalidValue);
         }
 
+        if indx == 0 {
+            self.current_vertex_attrib_0.set((x, y, z, w))
+        }
+
         self.ipc_renderer
             .send(CanvasMsg::WebGL(WebGLCommand::VertexAttrib(indx, x, y, z, w)))
             .unwrap();
@@ -1138,6 +1145,38 @@ impl WebGLRenderingContextMethods for WebGLRenderingContext {
         })
     }
 
+    #[allow(unsafe_code)]
+    // https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.9
+    fn GetVertexAttrib(&self, cx: *mut JSContext, index: u32, pname: u32) -> JSVal {
+        if index == 0 && pname == constants::CURRENT_VERTEX_ATTRIB {
+            let mut result = RootedValue::new(cx, UndefinedValue());
+            let (x, y, z, w) = self.current_vertex_attrib_0.get();
+            let attrib = vec![x, y, z, w];
+            unsafe {
+                attrib.to_jsval(cx, result.handle_mut());
+            }
+            return result.ptr
+        }
+
+        let (sender, receiver) = ipc::channel().unwrap();
+        self.ipc_renderer.send(CanvasMsg::WebGL(WebGLCommand::GetVertexAttrib(index, pname, sender))).unwrap();
+
+        match handle_potential_webgl_error!(self, receiver.recv().unwrap(), WebGLParameter::Invalid) {
+            WebGLParameter::Int(val) => Int32Value(val),
+            WebGLParameter::Bool(val) => BooleanValue(val),
+            WebGLParameter::String(_) => panic!("Vertex attrib should not be string"),
+            WebGLParameter::Float(_) => panic!("Vertex attrib should not be float"),
+            WebGLParameter::FloatArray(val) => {
+                let mut result = RootedValue::new(cx, UndefinedValue());
+                unsafe {
+                    val.to_jsval(cx, result.handle_mut());
+                }
+                result.ptr
+            }
+            WebGLParameter::Invalid => NullValue(),
+        }
+    }
+
     // https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.3
     fn Hint(&self, target: u32, mode: u32) {
         if target != constants::GENERATE_MIPMAP_HINT {
diff --git a/components/script/dom/webidls/WebGLRenderingContext.webidl b/components/script/dom/webidls/WebGLRenderingContext.webidl
index f46da97fd653..f5f1629ca482 100644
--- a/components/script/dom/webidls/WebGLRenderingContext.webidl
+++ b/components/script/dom/webidls/WebGLRenderingContext.webidl
@@ -595,7 +595,7 @@ interface WebGLRenderingContextBase
 
     WebGLUniformLocation? getUniformLocation(WebGLProgram? program, DOMString name);
 
-    //any getVertexAttrib(GLuint index, GLenum pname);
+    any getVertexAttrib(GLuint index, GLenum pname);
 
     //[WebGLHandlesContextLoss] GLsizeiptr getVertexAttribOffset(GLuint index, GLenum pname);
 
diff --git a/tests/wpt/metadata/webgl/conformance-1.0.3/conformance/attribs/gl-vertex-attrib.html.ini b/tests/wpt/metadata/webgl/conformance-1.0.3/conformance/attribs/gl-vertex-attrib.html.ini
index 237883ca267b..b6e4e17fa5cb 100644
--- a/tests/wpt/metadata/webgl/conformance-1.0.3/conformance/attribs/gl-vertex-attrib.html.ini
+++ b/tests/wpt/metadata/webgl/conformance-1.0.3/conformance/attribs/gl-vertex-attrib.html.ini
@@ -1539,3 +1539,483 @@
   [WebGL test #513: getError expected: NO_ERROR. Was INVALID_VALUE : ]
     expected: FAIL
 
+  [WebGL test #1: gl.getVertexAttrib(0, gl.CURRENT_VERTEX_ATTRIB)[0\] should be 1. Was 0.]
+    expected: FAIL
+
+  [WebGL test #5: gl.getVertexAttrib(0, gl.CURRENT_VERTEX_ATTRIB)[0\] should be 1. Was 0.]
+    expected: FAIL
+
+  [WebGL test #6: gl.getVertexAttrib(0, gl.CURRENT_VERTEX_ATTRIB)[1\] should be 2. Was 0.]
+    expected: FAIL
+
+  [WebGL test #9: gl.getVertexAttrib(0, gl.CURRENT_VERTEX_ATTRIB)[0\] should be 1. Was 0.]
+    expected: FAIL
+
+  [WebGL test #10: gl.getVertexAttrib(0, gl.CURRENT_VERTEX_ATTRIB)[1\] should be 2. Was 0.]
+    expected: FAIL
+
+  [WebGL test #11: gl.getVertexAttrib(0, gl.CURRENT_VERTEX_ATTRIB)[2\] should be 3. Was 0.]
+    expected: FAIL
+
+  [WebGL test #13: gl.getVertexAttrib(0, gl.CURRENT_VERTEX_ATTRIB)[0\] should be 1. Was 0.]
+    expected: FAIL
+
+  [WebGL test #14: gl.getVertexAttrib(0, gl.CURRENT_VERTEX_ATTRIB)[1\] should be 2. Was 0.]
+    expected: FAIL
+
+  [WebGL test #15: gl.getVertexAttrib(0, gl.CURRENT_VERTEX_ATTRIB)[2\] should be 3. Was 0.]
+    expected: FAIL
+
+  [WebGL test #16: gl.getVertexAttrib(0, gl.CURRENT_VERTEX_ATTRIB)[3\] should be 4. Was 1.]
+    expected: FAIL
+
+  [WebGL test #33: gl.getVertexAttrib(1, gl.CURRENT_VERTEX_ATTRIB)[0\] should be 1. Was 0.]
+    expected: FAIL
+
+  [WebGL test #37: gl.getVertexAttrib(1, gl.CURRENT_VERTEX_ATTRIB)[0\] should be 1. Was 0.]
+    expected: FAIL
+
+  [WebGL test #38: gl.getVertexAttrib(1, gl.CURRENT_VERTEX_ATTRIB)[1\] should be 2. Was 0.]
+    expected: FAIL
+
+  [WebGL test #41: gl.getVertexAttrib(1, gl.CURRENT_VERTEX_ATTRIB)[0\] should be 1. Was 0.]
+    expected: FAIL
+
+  [WebGL test #42: gl.getVertexAttrib(1, gl.CURRENT_VERTEX_ATTRIB)[1\] should be 2. Was 0.]
+    expected: FAIL
+
+  [WebGL test #43: gl.getVertexAttrib(1, gl.CURRENT_VERTEX_ATTRIB)[2\] should be 3. Was 0.]
+    expected: FAIL
+
+  [WebGL test #45: gl.getVertexAttrib(1, gl.CURRENT_VERTEX_ATTRIB)[0\] should be 1. Was 0.]
+    expected: FAIL
+
+  [WebGL test #46: gl.getVertexAttrib(1, gl.CURRENT_VERTEX_ATTRIB)[1\] should be 2. Was 0.]
+    expected: FAIL
+
+  [WebGL test #47: gl.getVertexAttrib(1, gl.CURRENT_VERTEX_ATTRIB)[2\] should be 3. Was 0.]
+    expected: FAIL
+
+  [WebGL test #48: gl.getVertexAttrib(1, gl.CURRENT_VERTEX_ATTRIB)[3\] should be 4. Was 1.]
+    expected: FAIL
+
+  [WebGL test #65: gl.getVertexAttrib(2, gl.CURRENT_VERTEX_ATTRIB)[0\] should be 1. Was 0.]
+    expected: FAIL
+
+  [WebGL test #69: gl.getVertexAttrib(2, gl.CURRENT_VERTEX_ATTRIB)[0\] should be 1. Was 0.]
+    expected: FAIL
+
+  [WebGL test #70: gl.getVertexAttrib(2, gl.CURRENT_VERTEX_ATTRIB)[1\] should be 2. Was 0.]
+    expected: FAIL
+
+  [WebGL test #73: gl.getVertexAttrib(2, gl.CURRENT_VERTEX_ATTRIB)[0\] should be 1. Was 0.]
+    expected: FAIL
+
+  [WebGL test #74: gl.getVertexAttrib(2, gl.CURRENT_VERTEX_ATTRIB)[1\] should be 2. Was 0.]
+    expected: FAIL
+
+  [WebGL test #75: gl.getVertexAttrib(2, gl.CURRENT_VERTEX_ATTRIB)[2\] should be 3. Was 0.]
+    expected: FAIL
+
+  [WebGL test #77: gl.getVertexAttrib(2, gl.CURRENT_VERTEX_ATTRIB)[0\] should be 1. Was 0.]
+    expected: FAIL
+
+  [WebGL test #78: gl.getVertexAttrib(2, gl.CURRENT_VERTEX_ATTRIB)[1\] should be 2. Was 0.]
+    expected: FAIL
+
+  [WebGL test #79: gl.getVertexAttrib(2, gl.CURRENT_VERTEX_ATTRIB)[2\] should be 3. Was 0.]
+    expected: FAIL
+
+  [WebGL test #80: gl.getVertexAttrib(2, gl.CURRENT_VERTEX_ATTRIB)[3\] should be 4. Was 1.]
+    expected: FAIL
+
+  [WebGL test #97: gl.getVertexAttrib(3, gl.CURRENT_VERTEX_ATTRIB)[0\] should be 1. Was 0.]
+    expected: FAIL
+
+  [WebGL test #101: gl.getVertexAttrib(3, gl.CURRENT_VERTEX_ATTRIB)[0\] should be 1. Was 0.]
+    expected: FAIL
+
+  [WebGL test #102: gl.getVertexAttrib(3, gl.CURRENT_VERTEX_ATTRIB)[1\] should be 2. Was 0.]
+    expected: FAIL
+
+  [WebGL test #105: gl.getVertexAttrib(3, gl.CURRENT_VERTEX_ATTRIB)[0\] should be 1. Was 0.]
+    expected: FAIL
+
+  [WebGL test #106: gl.getVertexAttrib(3, gl.CURRENT_VERTEX_ATTRIB)[1\] should be 2. Was 0.]
+    expected: FAIL
+
+  [WebGL test #107: gl.getVertexAttrib(3, gl.CURRENT_VERTEX_ATTRIB)[2\] should be 3. Was 0.]
+    expected: FAIL
+
+  [WebGL test #109: gl.getVertexAttrib(3, gl.CURRENT_VERTEX_ATTRIB)[0\] should be 1. Was 0.]
+    expected: FAIL
+
+  [WebGL test #110: gl.getVertexAttrib(3, gl.CURRENT_VERTEX_ATTRIB)[1\] should be 2. Was 0.]
+    expected: FAIL
+
+  [WebGL test #111: gl.getVertexAttrib(3, gl.CURRENT_VERTEX_ATTRIB)[2\] should be 3. Was 0.]
+    expected: FAIL
+
+  [WebGL test #112: gl.getVertexAttrib(3, gl.CURRENT_VERTEX_ATTRIB)[3\] should be 4. Was 1.]
+    expected: FAIL
+
+  [WebGL test #129: gl.getVertexAttrib(4, gl.CURRENT_VERTEX_ATTRIB)[0\] should be 1. Was 0.]
+    expected: FAIL
+
+  [WebGL test #133: gl.getVertexAttrib(4, gl.CURRENT_VERTEX_ATTRIB)[0\] should be 1. Was 0.]
+    expected: FAIL
+
+  [WebGL test #134: gl.getVertexAttrib(4, gl.CURRENT_VERTEX_ATTRIB)[1\] should be 2. Was 0.]
+    expected: FAIL
+
+  [WebGL test #137: gl.getVertexAttrib(4, gl.CURRENT_VERTEX_ATTRIB)[0\] should be 1. Was 0.]
+    expected: FAIL
+
+  [WebGL test #138: gl.getVertexAttrib(4, gl.CURRENT_VERTEX_ATTRIB)[1\] should be 2. Was 0.]
+    expected: FAIL
+
+  [WebGL test #139: gl.getVertexAttrib(4, gl.CURRENT_VERTEX_ATTRIB)[2\] should be 3. Was 0.]
+    expected: FAIL
+
+  [WebGL test #141: gl.getVertexAttrib(4, gl.CURRENT_VERTEX_ATTRIB)[0\] should be 1. Was 0.]
+    expected: FAIL
+
+  [WebGL test #142: gl.getVertexAttrib(4, gl.CURRENT_VERTEX_ATTRIB)[1\] should be 2. Was 0.]
+    expected: FAIL
+
+  [WebGL test #143: gl.getVertexAttrib(4, gl.CURRENT_VERTEX_ATTRIB)[2\] should be 3. Was 0.]
+    expected: FAIL
+
+  [WebGL test #144: gl.getVertexAttrib(4, gl.CURRENT_VERTEX_ATTRIB)[3\] should be 4. Was 1.]
+    expected: FAIL
+
+  [WebGL test #161: gl.getVertexAttrib(5, gl.CURRENT_VERTEX_ATTRIB)[0\] should be 1. Was 0.]
+    expected: FAIL
+
+  [WebGL test #165: gl.getVertexAttrib(5, gl.CURRENT_VERTEX_ATTRIB)[0\] should be 1. Was 0.]
+    expected: FAIL
+
+  [WebGL test #166: gl.getVertexAttrib(5, gl.CURRENT_VERTEX_ATTRIB)[1\] should be 2. Was 0.]
+    expected: FAIL
+
+  [WebGL test #169: gl.getVertexAttrib(5, gl.CURRENT_VERTEX_ATTRIB)[0\] should be 1. Was 0.]
+    expected: FAIL
+
+  [WebGL test #170: gl.getVertexAttrib(5, gl.CURRENT_VERTEX_ATTRIB)[1\] should be 2. Was 0.]
+    expected: FAIL
+
+  [WebGL test #171: gl.getVertexAttrib(5, gl.CURRENT_VERTEX_ATTRIB)[2\] should be 3. Was 0.]
+    expected: FAIL
+
+  [WebGL test #173: gl.getVertexAttrib(5, gl.CURRENT_VERTEX_ATTRIB)[0\] should be 1. Was 0.]
+    expected: FAIL
+
+  [WebGL test #174: gl.getVertexAttrib(5, gl.CURRENT_VERTEX_ATTRIB)[1\] should be 2. Was 0.]
+    expected: FAIL
+
+  [WebGL test #175: gl.getVertexAttrib(5, gl.CURRENT_VERTEX_ATTRIB)[2\] should be 3. Was 0.]
+    expected: FAIL
+
+  [WebGL test #176: gl.getVertexAttrib(5, gl.CURRENT_VERTEX_ATTRIB)[3\] should be 4. Was 1.]
+    expected: FAIL
+
+  [WebGL test #193: gl.getVertexAttrib(6, gl.CURRENT_VERTEX_ATTRIB)[0\] should be 1. Was 0.]
+    expected: FAIL
+
+  [WebGL test #197: gl.getVertexAttrib(6, gl.CURRENT_VERTEX_ATTRIB)[0\] should be 1. Was 0.]
+    expected: FAIL
+
+  [WebGL test #198: gl.getVertexAttrib(6, gl.CURRENT_VERTEX_ATTRIB)[1\] should be 2. Was 0.]
+    expected: FAIL
+
+  [WebGL test #201: gl.getVertexAttrib(6, gl.CURRENT_VERTEX_ATTRIB)[0\] should be 1. Was 0.]
+    expected: FAIL
+
+  [WebGL test #202: gl.getVertexAttrib(6, gl.CURRENT_VERTEX_ATTRIB)[1\] should be 2. Was 0.]
+    expected: FAIL
+
+  [WebGL test #203: gl.getVertexAttrib(6, gl.CURRENT_VERTEX_ATTRIB)[2\] should be 3. Was 0.]
+    expected: FAIL
+
+  [WebGL test #205: gl.getVertexAttrib(6, gl.CURRENT_VERTEX_ATTRIB)[0\] should be 1. Was 0.]
+    expected: FAIL
+
+  [WebGL test #206: gl.getVertexAttrib(6, gl.CURRENT_VERTEX_ATTRIB)[1\] should be 2. Was 0.]
+    expected: FAIL
+
+  [WebGL test #207: gl.getVertexAttrib(6, gl.CURRENT_VERTEX_ATTRIB)[2\] should be 3. Was 0.]
+    expected: FAIL
+
+  [WebGL test #208: gl.getVertexAttrib(6, gl.CURRENT_VERTEX_ATTRIB)[3\] should be 4. Was 1.]
+    expected: FAIL
+
+  [WebGL test #225: gl.getVertexAttrib(7, gl.CURRENT_VERTEX_ATTRIB)[0\] should be 1. Was 0.]
+    expected: FAIL
+
+  [WebGL test #229: gl.getVertexAttrib(7, gl.CURRENT_VERTEX_ATTRIB)[0\] should be 1. Was 0.]
+    expected: FAIL
+
+  [WebGL test #230: gl.getVertexAttrib(7, gl.CURRENT_VERTEX_ATTRIB)[1\] should be 2. Was 0.]
+    expected: FAIL
+
+  [WebGL test #233: gl.getVertexAttrib(7, gl.CURRENT_VERTEX_ATTRIB)[0\] should be 1. Was 0.]
+    expected: FAIL
+
+  [WebGL test #234: gl.getVertexAttrib(7, gl.CURRENT_VERTEX_ATTRIB)[1\] should be 2. Was 0.]
+    expected: FAIL
+
+  [WebGL test #235: gl.getVertexAttrib(7, gl.CURRENT_VERTEX_ATTRIB)[2\] should be 3. Was 0.]
+    expected: FAIL
+
+  [WebGL test #237: gl.getVertexAttrib(7, gl.CURRENT_VERTEX_ATTRIB)[0\] should be 1. Was 0.]
+    expected: FAIL
+
+  [WebGL test #238: gl.getVertexAttrib(7, gl.CURRENT_VERTEX_ATTRIB)[1\] should be 2. Was 0.]
+    expected: FAIL
+
+  [WebGL test #239: gl.getVertexAttrib(7, gl.CURRENT_VERTEX_ATTRIB)[2\] should be 3. Was 0.]
+    expected: FAIL
+
+  [WebGL test #240: gl.getVertexAttrib(7, gl.CURRENT_VERTEX_ATTRIB)[3\] should be 4. Was 1.]
+    expected: FAIL
+
+  [WebGL test #257: gl.getVertexAttrib(8, gl.CURRENT_VERTEX_ATTRIB)[0\] should be 1. Was 0.]
+    expected: FAIL
+
+  [WebGL test #261: gl.getVertexAttrib(8, gl.CURRENT_VERTEX_ATTRIB)[0\] should be 1. Was 0.]
+    expected: FAIL
+
+  [WebGL test #262: gl.getVertexAttrib(8, gl.CURRENT_VERTEX_ATTRIB)[1\] should be 2. Was 0.]
+    expected: FAIL
+
+  [WebGL test #265: gl.getVertexAttrib(8, gl.CURRENT_VERTEX_ATTRIB)[0\] should be 1. Was 0.]
+    expected: FAIL
+
+  [WebGL test #266: gl.getVertexAttrib(8, gl.CURRENT_VERTEX_ATTRIB)[1\] should be 2. Was 0.]
+    expected: FAIL
+
+  [WebGL test #267: gl.getVertexAttrib(8, gl.CURRENT_VERTEX_ATTRIB)[2\] should be 3. Was 0.]
+    expected: FAIL
+
+  [WebGL test #269: gl.getVertexAttrib(8, gl.CURRENT_VERTEX_ATTRIB)[0\] should be 1. Was 0.]
+    expected: FAIL
+
+  [WebGL test #270: gl.getVertexAttrib(8, gl.CURRENT_VERTEX_ATTRIB)[1\] should be 2. Was 0.]
+    expected: FAIL
+
+  [WebGL test #271: gl.getVertexAttrib(8, gl.CURRENT_VERTEX_ATTRIB)[2\] should be 3. Was 0.]
+    expected: FAIL
+
+  [WebGL test #272: gl.getVertexAttrib(8, gl.CURRENT_VERTEX_ATTRIB)[3\] should be 4. Was 1.]
+    expected: FAIL
+
+  [WebGL test #289: gl.getVertexAttrib(9, gl.CURRENT_VERTEX_ATTRIB)[0\] should be 1. Was 0.]
+    expected: FAIL
+
+  [WebGL test #293: gl.getVertexAttrib(9, gl.CURRENT_VERTEX_ATTRIB)[0\] should be 1. Was 0.]
+    expected: FAIL
+
+  [WebGL test #294: gl.getVertexAttrib(9, gl.CURRENT_VERTEX_ATTRIB)[1\] should be 2. Was 0.]
+    expected: FAIL
+
+  [WebGL test #297: gl.getVertexAttrib(9, gl.CURRENT_VERTEX_ATTRIB)[0\] should be 1. Was 0.]
+    expected: FAIL
+
+  [WebGL test #298: gl.getVertexAttrib(9, gl.CURRENT_VERTEX_ATTRIB)[1\] should be 2. Was 0.]
+    expected: FAIL
+
+  [WebGL test #299: gl.getVertexAttrib(9, gl.CURRENT_VERTEX_ATTRIB)[2\] should be 3. Was 0.]
+    expected: FAIL
+
+  [WebGL test #301: gl.getVertexAttrib(9, gl.CURRENT_VERTEX_ATTRIB)[0\] should be 1. Was 0.]
+    expected: FAIL
+
+  [WebGL test #302: gl.getVertexAttrib(9, gl.CURRENT_VERTEX_ATTRIB)[1\] should be 2. Was 0.]
+    expected: FAIL
+
+  [WebGL test #303: gl.getVertexAttrib(9, gl.CURRENT_VERTEX_ATTRIB)[2\] should be 3. Was 0.]
+    expected: FAIL
+
+  [WebGL test #304: gl.getVertexAttrib(9, gl.CURRENT_VERTEX_ATTRIB)[3\] should be 4. Was 1.]
+    expected: FAIL
+
+  [WebGL test #321: gl.getVertexAttrib(10, gl.CURRENT_VERTEX_ATTRIB)[0\] should be 1. Was 0.]
+    expected: FAIL
+
+  [WebGL test #325: gl.getVertexAttrib(10, gl.CURRENT_VERTEX_ATTRIB)[0\] should be 1. Was 0.]
+    expected: FAIL
+
+  [WebGL test #326: gl.getVertexAttrib(10, gl.CURRENT_VERTEX_ATTRIB)[1\] should be 2. Was 0.]
+    expected: FAIL
+
+  [WebGL test #329: gl.getVertexAttrib(10, gl.CURRENT_VERTEX_ATTRIB)[0\] should be 1. Was 0.]
+    expected: FAIL
+
+  [WebGL test #330: gl.getVertexAttrib(10, gl.CURRENT_VERTEX_ATTRIB)[1\] should be 2. Was 0.]
+    expected: FAIL
+
+  [WebGL test #331: gl.getVertexAttrib(10, gl.CURRENT_VERTEX_ATTRIB)[2\] should be 3. Was 0.]
+    expected: FAIL
+
+  [WebGL test #333: gl.getVertexAttrib(10, gl.CURRENT_VERTEX_ATTRIB)[0\] should be 1. Was 0.]
+    expected: FAIL
+
+  [WebGL test #334: gl.getVertexAttrib(10, gl.CURRENT_VERTEX_ATTRIB)[1\] should be 2. Was 0.]
+    expected: FAIL
+
+  [WebGL test #335: gl.getVertexAttrib(10, gl.CURRENT_VERTEX_ATTRIB)[2\] should be 3. Was 0.]
+    expected: FAIL
+
+  [WebGL test #336: gl.getVertexAttrib(10, gl.CURRENT_VERTEX_ATTRIB)[3\] should be 4. Was 1.]
+    expected: FAIL
+
+  [WebGL test #353: gl.getVertexAttrib(11, gl.CURRENT_VERTEX_ATTRIB)[0\] should be 1. Was 0.]
+    expected: FAIL
+
+  [WebGL test #357: gl.getVertexAttrib(11, gl.CURRENT_VERTEX_ATTRIB)[0\] should be 1. Was 0.]
+    expected: FAIL
+
+  [WebGL test #358: gl.getVertexAttrib(11, gl.CURRENT_VERTEX_ATTRIB)[1\] should be 2. Was 0.]
+    expected: FAIL
+
+  [WebGL test #361: gl.getVertexAttrib(11, gl.CURRENT_VERTEX_ATTRIB)[0\] should be 1. Was 0.]
+    expected: FAIL
+
+  [WebGL test #362: gl.getVertexAttrib(11, gl.CURRENT_VERTEX_ATTRIB)[1\] should be 2. Was 0.]
+    expected: FAIL
+
+  [WebGL test #363: gl.getVertexAttrib(11, gl.CURRENT_VERTEX_ATTRIB)[2\] should be 3. Was 0.]
+    expected: FAIL
+
+  [WebGL test #365: gl.getVertexAttrib(11, gl.CURRENT_VERTEX_ATTRIB)[0\] should be 1. Was 0.]
+    expected: FAIL
+
+  [WebGL test #366: gl.getVertexAttrib(11, gl.CURRENT_VERTEX_ATTRIB)[1\] should be 2. Was 0.]
+    expected: FAIL
+
+  [WebGL test #367: gl.getVertexAttrib(11, gl.CURRENT_VERTEX_ATTRIB)[2\] should be 3. Was 0.]
+    expected: FAIL
+
+  [WebGL test #368: gl.getVertexAttrib(11, gl.CURRENT_VERTEX_ATTRIB)[3\] should be 4. Was 1.]
+    expected: FAIL
+
+  [WebGL test #385: gl.getVertexAttrib(12, gl.CURRENT_VERTEX_ATTRIB)[0\] should be 1. Was 0.]
+    expected: FAIL
+
+  [WebGL test #389: gl.getVertexAttrib(12, gl.CURRENT_VERTEX_ATTRIB)[0\] should be 1. Was 0.]
+    expected: FAIL
+
+  [WebGL test #390: gl.getVertexAttrib(12, gl.CURRENT_VERTEX_ATTRIB)[1\] should be 2. Was 0.]
+    expected: FAIL
+
+  [WebGL test #393: gl.getVertexAttrib(12, gl.CURRENT_VERTEX_ATTRIB)[0\] should be 1. Was 0.]
+    expected: FAIL
+
+  [WebGL test #394: gl.getVertexAttrib(12, gl.CURRENT_VERTEX_ATTRIB)[1\] should be 2. Was 0.]
+    expected: FAIL
+
+  [WebGL test #395: gl.getVertexAttrib(12, gl.CURRENT_VERTEX_ATTRIB)[2\] should be 3. Was 0.]
+    expected: FAIL
+
+  [WebGL test #397: gl.getVertexAttrib(12, gl.CURRENT_VERTEX_ATTRIB)[0\] should be 1. Was 0.]
+    expected: FAIL
+
+  [WebGL test #398: gl.getVertexAttrib(12, gl.CURRENT_VERTEX_ATTRIB)[1\] should be 2. Was 0.]
+    expected: FAIL
+
+  [WebGL test #399: gl.getVertexAttrib(12, gl.CURRENT_VERTEX_ATTRIB)[2\] should be 3. Was 0.]
+    expected: FAIL
+
+  [WebGL test #400: gl.getVertexAttrib(12, gl.CURRENT_VERTEX_ATTRIB)[3\] should be 4. Was 1.]
+    expected: FAIL
+
+  [WebGL test #417: gl.getVertexAttrib(13, gl.CURRENT_VERTEX_ATTRIB)[0\] should be 1. Was 0.]
+    expected: FAIL
+
+  [WebGL test #421: gl.getVertexAttrib(13, gl.CURRENT_VERTEX_ATTRIB)[0\] should be 1. Was 0.]
+    expected: FAIL
+
+  [WebGL test #422: gl.getVertexAttrib(13, gl.CURRENT_VERTEX_ATTRIB)[1\] should be 2. Was 0.]
+    expected: FAIL
+
+  [WebGL test #425: gl.getVertexAttrib(13, gl.CURRENT_VERTEX_ATTRIB)[0\] should be 1. Was 0.]
+    expected: FAIL
+
+  [WebGL test #426: gl.getVertexAttrib(13, gl.CURRENT_VERTEX_ATTRIB)[1\] should be 2. Was 0.]
+    expected: FAIL
+
+  [WebGL test #427: gl.getVertexAttrib(13, gl.CURRENT_VERTEX_ATTRIB)[2\] should be 3. Was 0.]
+    expected: FAIL
+
+  [WebGL test #429: gl.getVertexAttrib(13, gl.CURRENT_VERTEX_ATTRIB)[0\] should be 1. Was 0.]
+    expected: FAIL
+
+  [WebGL test #430: gl.getVertexAttrib(13, gl.CURRENT_VERTEX_ATTRIB)[1\] should be 2. Was 0.]
+    expected: FAIL
+
+  [WebGL test #431: gl.getVertexAttrib(13, gl.CURRENT_VERTEX_ATTRIB)[2\] should be 3. Was 0.]
+    expected: FAIL
+
+  [WebGL test #432: gl.getVertexAttrib(13, gl.CURRENT_VERTEX_ATTRIB)[3\] should be 4. Was 1.]
+    expected: FAIL
+
+  [WebGL test #449: gl.getVertexAttrib(14, gl.CURRENT_VERTEX_ATTRIB)[0\] should be 1. Was 0.]
+    expected: FAIL
+
+  [WebGL test #453: gl.getVertexAttrib(14, gl.CURRENT_VERTEX_ATTRIB)[0\] should be 1. Was 0.]
+    expected: FAIL
+
+  [WebGL test #454: gl.getVertexAttrib(14, gl.CURRENT_VERTEX_ATTRIB)[1\] should be 2. Was 0.]
+    expected: FAIL
+
+  [WebGL test #457: gl.getVertexAttrib(14, gl.CURRENT_VERTEX_ATTRIB)[0\] should be 1. Was 0.]
+    expected: FAIL
+
+  [WebGL test #458: gl.getVertexAttrib(14, gl.CURRENT_VERTEX_ATTRIB)[1\] should be 2. Was 0.]
+    expected: FAIL
+
+  [WebGL test #459: gl.getVertexAttrib(14, gl.CURRENT_VERTEX_ATTRIB)[2\] should be 3. Was 0.]
+    expected: FAIL
+
+  [WebGL test #461: gl.getVertexAttrib(14, gl.CURRENT_VERTEX_ATTRIB)[0\] should be 1. Was 0.]
+    expected: FAIL
+
+  [WebGL test #462: gl.getVertexAttrib(14, gl.CURRENT_VERTEX_ATTRIB)[1\] should be 2. Was 0.]
+    expected: FAIL
+
+  [WebGL test #463: gl.getVertexAttrib(14, gl.CURRENT_VERTEX_ATTRIB)[2\] should be 3. Was 0.]
+    expected: FAIL
+
+  [WebGL test #464: gl.getVertexAttrib(14, gl.CURRENT_VERTEX_ATTRIB)[3\] should be 4. Was 1.]
+    expected: FAIL
+
+  [WebGL test #481: gl.getVertexAttrib(15, gl.CURRENT_VERTEX_ATTRIB)[0\] should be 1. Was 0.]
+    expected: FAIL
+
+  [WebGL test #485: gl.getVertexAttrib(15, gl.CURRENT_VERTEX_ATTRIB)[0\] should be 1. Was 0.]
+    expected: FAIL
+
+  [WebGL test #486: gl.getVertexAttrib(15, gl.CURRENT_VERTEX_ATTRIB)[1\] should be 2. Was 0.]
+    expected: FAIL
+
+  [WebGL test #489: gl.getVertexAttrib(15, gl.CURRENT_VERTEX_ATTRIB)[0\] should be 1. Was 0.]
+    expected: FAIL
+
+  [WebGL test #490: gl.getVertexAttrib(15, gl.CURRENT_VERTEX_ATTRIB)[1\] should be 2. Was 0.]
+    expected: FAIL
+
+  [WebGL test #491: gl.getVertexAttrib(15, gl.CURRENT_VERTEX_ATTRIB)[2\] should be 3. Was 0.]
+    expected: FAIL
+
+  [WebGL test #493: gl.getVertexAttrib(15, gl.CURRENT_VERTEX_ATTRIB)[0\] should be 1. Was 0.]
+    expected: FAIL
+
+  [WebGL test #494: gl.getVertexAttrib(15, gl.CURRENT_VERTEX_ATTRIB)[1\] should be 2. Was 0.]
+    expected: FAIL
+
+  [WebGL test #495: gl.getVertexAttrib(15, gl.CURRENT_VERTEX_ATTRIB)[2\] should be 3. Was 0.]
+    expected: FAIL
+
+  [WebGL test #496: gl.getVertexAttrib(15, gl.CURRENT_VERTEX_ATTRIB)[3\] should be 4. Was 1.]
+    expected: FAIL
+