Did Humble Bundle stop supporting the "Activate on Steam" option?

There was a time where you could link your Steam account to your Humble Bundle account and have the codes automatically redeem as you clicked them, without all of the copy-paste-wait-wait more-click next-wait more-keep waiting-click finish business. This was an excellent feature and I loved it. But now it doesn't appear to work for me.
It still shows my account linked to a Steam account, so the framework hasn't been removed, but it doesn't seem to function for me. Is this working normally when it gives me the codes, or is it something in my own Humble Bundle or Steam account that's broken and I should try to fix?
(If it is something broken, troubleshooting help is also appreciated, but not necessary to answer my question.)
Best Answer
As mentioned, yes Valve stopped Humble Bundle offering this functionality a long time ago. However, I've created an open-source Chrome plugin, Steam Redeem, that attempts to recreate this behaviour.
Basically once installed it detects Humble Bundle keys in your browser and injects a redeem button. When you press the button it uses the Steam browser API (accessible manually at https://store.steampowered.com/account/registerkey) to redeem your steam key. There's also built-in bulk redemption, if you click the Steam Redeem logo (next to your address bar) it will automatically redeem all keys visible on the page.
It's a work in progress, and being open source, contributions are welcome.
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What happened Humble Bundle?
On October 13, 2017, Humble Bundle announced it had been acquired by IGN Entertainment, a subsidiary of Ziff Davis.How do I activate Humble Bundle games?
When you are logged into your account, click the button in the bottom left corner that says "+ ADD A GAME\u2026" to register the product key to your account. In the pop-up window, select the "Activate a Product on Steam" option.Do humble choice games expire?
Unredeemed games do not expire, nor are they automatically redeemed by our system! You can pre-pay to redeem them at any time, and they won't expire when the month ends or in the future.Do Humble Bundle keys ever expire?
Remember to redeem your code BEFORE the expiration date. The specific expiration date will be located on the download page, which is typically two weeks after the promotion ends. Once redeemed, the game remains on your Steam account and is yours to keep.What Is Humble Bundle ? Humble Choice, Bundles Explained
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Answer 2
To follow up, for future querents, Valve began offering web-based activation of keys again in August 2017, and Humble Bundle employs this by providing a button that brings up that page with the key filled in. If you are already logged into Steam, it's essentially a three-click process. Once on the Humble Site to Reedem on Steam, one to accept the Steam agreement, and then one to Redeem. This is, of course, substantially similar to the plugin that Benjamin apparently created. I don't know whether they employed his code, or just rolled their own, similar, solution.
Sources: Stack Exchange - This article follows the attribution requirements of Stack Exchange and is licensed under CC BY-SA 3.0.
Images: Anna Tarazevich, Anna Tarazevich, Anna Tarazevich, Anna Tarazevich