I have Safari 9 working for 90% of the websites. There are two very difficult ones, Youtube and Cloudflare with their captchas. I have managed to enter YouTube with all normality that as you know is banned from Safari9. I suspect that the ban was not due to any codec, but to the ad "servers". Embedded in websites, YouTube works very well which indicates that the ban was due to "commercial" reasons. Now, once inside, YouTube continues to prevent normal work and can only be done if it is entered as "Ipad". I keep doing tests