You may choose whether Twitter widgets on your site help to tailor content and suggestions for Twitter users. You can opt out of having information from your website used for personalization by following the instructions below.
Include the following snippet within the <meta> and <link> elements on your pages that include Twitter for Websites widgets:
Refer to comments for information on adjusting the widget height.
How to test:
Check that the home page Twitter embed is displaying normally.
While it's difficult to tell whether the DNT setting actually works, we can check if the third-party cookies left by Twitter have changed, compared to the production site. No expectations here, though.
…the widget on the homepage is working again.
They’ve changed the widget so now you need to specify a height with their data-height attribute or it’ll just show everything without any overflow scrolling.
We probably want the height somewhere in the vicinity of 600 to 750 pixels.
<a class="twitter-timeline" href="https://twitter.com/otw_status/lists/otw-tweets" data-dnt="true" data-height="600">
Can confirm that the widget just goes on for several screens worth of scroll on production, and is contained in a neat little box on staging. Looking in Chrome, looks like what james posted.