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Console Error when using Sentry CDN

See original GitHub issue

Sentry shared Issue

Requirements

Review the documentation: https://docs.sentry.io/
Search for existing issues: https://github.com/getsentry/sentry-javascript/issues
Use the latest release: https://github.com/getsentry/sentry-javascript/releases

Package + Version

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

Version:

4.0.4

Description

When usinghttps://browser.sentry-cdn.com/4.0.4/bundle.min.js I get error messages in the console.

breadcrumbs.ts:159 TypeError: t.substr is not a function
    at Object.e.truncate (string.js:24)
    at e.<anonymous> (baseclient.js:332)
    at baseclient.js:43
    at Object.next (baseclient.js:24)
    at baseclient.js:18
    at new Promise (<anonymous>)
    at r (baseclient.js:14)
    at e.t.prepareEvent (baseclient.js:310)
    at e.<anonymous> (client.ts:27)
    at bundle.min.js:2
    at Object.next (bundle.min.js:2)
    at bundle.min.js:2
    at new Promise (<anonymous>)
    at o (bundle.min.js:2)
    at e.prepareEvent (client.ts:25)
    at e.<anonymous> (baseclient.js:385)
    at baseclient.js:43
    at Object.next (baseclient.js:24)
    at baseclient.js:18
    at new Promise (<anonymous>)
    at r (baseclient.js:14)
    at e.t.processEvent (baseclient.js:369)
    at e.<anonymous> (baseclient.js:229)
    at baseclient.js:43
    at Object.next (baseclient.js:24)
    at baseclient.js:18
    at new Promise (<anonymous>)
    at r (baseclient.js:14)
    at e.<anonymous> (baseclient.js:226)
    at baseclient.js:43
    at Object.next (baseclient.js:24)
    at baseclient.js:18
    at new Promise (<anonymous>)
    at r (baseclient.js:14)
    at e.t.captureEvent (baseclient.js:220)
    at t.invokeClientAsync (hub.js:96)
    at t.captureEvent (hub.js:232)
    at Array.<anonymous> (globalhandlers.ts:49)
    at c (tracekit.ts:320)
    at s (tracekit.ts:392)
    at HTMLElement.fire (legacy-element-mixin.html:427)
    at HTMLElement.__onError (firebase-common-behavior.html:60)
    at index.esm.js:198
    at yt (index.esm.js:198)
    at t.raise (index.esm.js:198)
    at t.raiseQueuedEventsMatchingPredicate_ (index.esm.js:198)
    at t.raiseEventsForChangedPath (index.esm.js:198)
    at Object.onComplete (index.esm.js:198)
    at index.esm.js:198
    at n.onDataMessage_ (index.esm.js:198)

Application is using Polymer 2 and Firebase and is otherwise reporting errors normally, but this error message keeps appearing. Any ideas?