What BugMojo can't capture

BugMojo captures a lot automatically, but session replay has real limits. Because replay reconstructs the DOM with rrweb instead of recording pixels, a few surfaces simply can't be rebuilt. This page lists exactly what those are, why, and what to do instead.

An iframe loaded from a different origin (a payment widget, an embedded map, a third-party chat) is sandboxed by the browser. For security reasons the extension can't read the DOM inside it, so replay shows the iframe's outline but not its live contents. Same-origin iframes usually record fine.

A <canvas>, a WebGL scene, or a native <video> element paints pixels that never exist as DOM nodes. There's nothing for rrweb to serialize, so these areas appear blank or frozen in replay. The surrounding page still records normally, and console and network capture continue throughout.

Most web components with an open shadow root record correctly. The exceptions are closed shadow roots, which scripts can't inspect, and a small number of components that mutate their shadow tree in unusual ways. In those cases replay may miss changes inside the component even though the rest of the page is intact.