diff --git a/dom/canvas/crashtests/1305850.html b/dom/canvas/crashtests/1305850.html
new file mode 100644
index 000000000000..7f79905161f0
--- /dev/null
+++ b/dom/canvas/crashtests/1305850.html
@@ -0,0 +1,11 @@
+<!DOCTYPE html>
+<html>
+<script>
+window.onload=function(){
+  var gl = document.createElementNS("http://www.w3.org/1999/xhtml", "canvas").getContext("webgl");
+  var shader = gl.createShader(gl.FRAGMENT_SHADER);
+  gl.shaderSource(shader, 'void main(){d[vec4[]()}');
+  gl.compileShader(shader);
+};
+</script>
+</html>
diff --git a/dom/canvas/crashtests/crashtests.list b/dom/canvas/crashtests/crashtests.list
index ce515bfae155..8882369cd141 100644
--- a/dom/canvas/crashtests/crashtests.list
+++ b/dom/canvas/crashtests/crashtests.list
@@ -38,10 +38,11 @@ load 1290628-1.html
 load 1283113-1.html
 load 1286458-1.html
 load 1296410-1.html
+load 1298576-1.html
 load 1299062-1.html
 load 1305085-1.html
 load 1305312-1.html
-load 1298576-1.html
+load 1305850.html
 load 1334366-1.html
 load 1334647-1.html
 load 1357092.html
