diff --git a/.htmltest.yml b/.htmltest.yml
index efb17c56e2..7c69b98d5f 100644
--- a/.htmltest.yml
+++ b/.htmltest.yml
@@ -29,6 +29,7 @@ IgnoreURLs:
   - "marketplace.visualstudio.com"
   - "chrome.google.com"
   - "raspberrypi.com"
+  - "grabcad.com"
 IgnoreDirs:
   - "lib"
 CacheExpires: "6h"