Like many (many, many, many) others here, my embedded timeline is not displaying in some browsers. It displays fine in Firefox 16 (Mac) and Explorer 8 (PC), but gives only a “tweets by @…” in Chrome 22 (Mac) and Safari 5 (Mac).
Per the instructions in this thread and at https://dev.twitter.com/docs/embedded-timelines, I have configured the widget to use my domain name with and without “www”, and have also added the *.domainname option. I first encountered the problem while putting together a Wordpress site, per here: http://bitly.com/SyiUuh. I have re-created the problem on a very simple (non-Wordpress) html page here: http://bit.ly/WmSgZK. I previously achieved the same results using a different twitter account, and have tried re-creating the widget numerous times.
Any help from @froginthevalley or another experienced individual would be greatly appreciated. Thanks.