Click to Call (InsideSales.com) Not Working

We’ve been running a Skuid page in combination with InsideSales.com for almost a year now.  However, just in the last week or two, users have told me that the click-to-dial icon doesn’t work on Skuid pages.  (Still works on standard SF pages.)  When you click the phone icon in the Skuid page, it does…nothing.  (Chrome and IE.)

I’ve seen a couple other posts around click-to-dial functionality, but they all seem to be pretty specific use cases / implementations, so I didn’t know if using InsideSales.com would make a difference in the answer.

I’m thinking it might be related to Brooklyn, but the timing seems a bit off, since we pushed that in early December.