Do you want to request a feature or report a bug?

bug

(If this is a usage question, please do not post it here—post it on forum.sentry.io instead. If this is not a “feature” or a “bug”, or the phrase “How do I...?” applies, then it's probably a usage question.)

What is the current behavior?

raven-js throws a DataCloneError on Firefox iOS`

If the current behavior is a bug, please provide the steps to reproduce and if possible a minimal demo of the problem via https://jsfiddle.net or similar.

What is the expected behavior?

raven-js should not throw errors :-)

Which versions of Raven.js, and which browser and OS are affected by this issue? Did this work in previous versions of Raven.js? Are you using the CDN (http://ravenjs.com)? Are you using hosted Sentry or on-premises? If on-premises, which version (e.g. 8.7.0)?

DataCloneError

The object can not be cloned.

./node_modules/raven-js/src/raven.js in this at line 360:0

Seeing this with:
Self-hosted sentry version 3.22.1
Firefox iOS 10.6
iOS 11.2.5