Comments on: Thanks to CloudFront, Visual Website Optimizer is faster than ever

By: Daniel Levitt

Daniel Levitt — Wed, 08 Sep 2010 10:47:45 +0000

Cloudfront now supports https so you can have a nice url using a CNAME record. The only caveat is that the bucket name cannot contain dots within it as this will modify the sub-domain level and cause the SSL certificate to error.

By: Web Self Service

Web Self Service — Wed, 21 Jul 2010 07:15:33 +0000

Thanks for posting this, I may be considering this in the right time.

By: Jayphen

Jayphen — Wed, 21 Jul 2010 05:17:31 +0000

Okay, I see that visibility:hidden is applied to the body and then removed when the changes have been made. Clever

By: Paras Chopra

Paras Chopra — Wed, 21 Jul 2010 04:13:43 +0000

No, CSS hides the elements before they are shown on the page. Just try it once, you will know.

By: Jayphen

Jayphen — Wed, 21 Jul 2010 04:13:33 +0000

Err reading over my initial comment, I don’t think I was clear enough.

To clarify, what I’m concerned about is seeing a noticeable ‘flash’ as the content of the page changes/reflows.

By: Jayphen

Jayphen — Wed, 21 Jul 2010 04:12:08 +0000

How does that remedy the issue? There will still be a delay between first arriving at the page & when the Javascript hides the original elements… then the replacement elements still need to be injected into the page. I assume this is just a fact of life when it comes to client-side A/B testing.

By: Paras Chopra

Paras Chopra — Wed, 21 Jul 2010 04:05:44 +0000

We hide them using CSS.

By: Jayphen

Jayphen — Wed, 21 Jul 2010 02:13:54 +0000

One thing that has always concerned me about Javascript-based A/B testing is that as the connection to the remote server is made (Amazon S3 in this case), the ‘A’ or default state must still be displayed. How do you address the issue of the page reflowing as the A state is replaced with the B state?