URL Blocking not working iwth mobile devices

This might be a known issue but I couldn’t find it in the faq. When I block a third party script (in this case just to test, I picked Jquery) on mobile devices its not actually blocking it.

So here, I block jquery but if you check the connection log it’s still running and downloading the exact script I blocked.

http://www.webpagetest.org/result/180727_FV_805a1f2654c7377b8eb3da6acd7e7142/1/details/#waterfall_view_step1

Should work fine with Chrome and Samsung browser on Android devices but iOS doesn’t support request blocking (or header manipulation).