Tracing Code uses String.includes (unsupported in IE11)

[rtpg]

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Package + Version

• @sentry/browser
• @sentry/node
• raven-js
• raven-node (raven for node)
• other:

Version:

5.17.0

Description

String.prototype.includes is included in this tracing code.

This function is defined in ES2015, but IE11 doesn't fully support ES2015, and doesn't define this one in particular.

In the past we had issues with IE11 on @sentry/browser in the past as well. I'm fairly certain you are not dropping IE11 support (given it's still supported in Windows 10), but if that's the case it would probably good to edit your tsconfig.json to set the target to ES5 or something to actually confirm usage of problem functions like this.

If you're not targetting IE11, please state that explicitly somewhere.

Sentry error