Animation works in FF, not Safari

Here’s a strange one – I have a small animation that is used for a Google display ad. It previews in Safari when viewed on my desktop. I uploaded to my web server and from there it displays properly in Firefox, but not in Safari. Same thing when previewed in AdWords - shows up in Firefox but not Safari. (252.3 KB)

Is there a link to the one on the server…

Here is a copy of it, on one of my own servers.

Have an ad blocker enabled in Firefox?

It is likely seeing the word ‘ad’ and looking at the dimensions of your ad, which is a standard (IAB) ad size:

Filename issue? Makes sense. Ad blocker is on in Safari. I haven’t touched anything in Firefox.

Works swimmingly for me in Firefox. Do you see anything in your FF developer console?

No issues with FF, only with Safari.

Whoops, I meant Safari. Have any extensions enabled?

Not really sure why this might be. I tried in Safari 8 on Yosemite (and version 10) and it also looks fine (when my ad blockers are off, of course):

I can confirm no problem for me either…

I’m using 9.1.2 (11601.7.7) on El Capitan. I have AdBlocker on my home machine but this is my work machine — no AB or extensions.

Can you try ctrl + clicking on the area where the Hype document would be and then clicking ‘Inspect Element’ ? I feel like the developer console should be giving you some information or at least an error if nothing is appearing…