Add reCAPTCHA support to the badge/iframe version

[toolmantim]

It appears that the reCAPTCHA support added in #311 ignored the badge/iframe version of slackin, and as it stands at the moment the badge version is unusable (see #311 (comment)). This is a problem for people wanting to update their Heroku apps because of the Node vulnerability.

This is a start at fixing it, but I'm not exactly sure how we can even support it in an iframe popup? For example:

• Get recaptcha showing in the iframe version
• Figure out what to do

[toolmantim]

@whit537 for now I've had to switch to a fork/branch that reverts #311: https://github.com/toolmantim/slackin/commits/revert-recaptcha

[chadwhitacre]

@toolmantim FYI I'm not a maintainer on this project and I don't plan to help with adding reCAPTCHA support to the badge version. See SlackOut for an explanation of the security risk you're taking by reverting #311 (we're not actually using SlackIn anymore because our Slack hasn't recovered from SlackOut yet). Good luck! :-)

[toolmantim]

@whit537 yep, understood. I just thought you might have some ideas/thoughts on how to unbreak things, seeing as you did the implementation?

My only suggestion is to remove the popup that opens when you click the badge, and instead link to the URL in a new tab/window.

[chadwhitacre]

seeing as you did the implementation?

I actually just cleaned up someone else's implementation. 😞

[toolmantim]

Having switched to slackin-extended, I'm closing this for now.