Meteor-friendly transaction monitoring?

Hi does anyone know of a Meteor friendly application monitor saas? I’m not looking for simple uptime, but a test like content matching.

For example on the statuscake.com Superior plan it can do content matching, but unfortunately the test always fails on my site because it seems their “browser” can’t really render my page. It’s just looking at the source before the app has built the page.

Pingdom also chokes on it. As does a few others I tried.