mydea
commented
5 days ago Hmm, i am not quite sure why, but it seems that for whatever reason, on this page Array.from(set) is not behaving as expected. I would guess that something somewhere is incorrectly monkey patching something...
Normally, this code should work:
const set = new Set();
set.add('aa');
set.add('bb');
const array = Array.from(set);
// --> ['aa', 'bb']However, if I rund this code on the linked site, the output is:
// --> [Set(2)]So Array.from() is not correctly identifiying the set as iterable. The only reason I can think of for this is some polyfill or monkey patch that is not quite correct. The behavior we rely on is correct, though (see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/from) so that has to be some problem on the site specifically, I feel...
Is there an existing issue for this?
How do you use Sentry?
Sentry Saas (sentry.io)
Which SDK are you using?
@sentry/browser
SDK Version
8.34.0
Framework Version
No response
Link to Sentry event
No response
Reproduction Example/SDK Setup
No response
Steps to Reproduce
User provided code example but i was unable to reproduce with it on my own setup. There is a public server and the steps to reproduce are available on this internal ticket (contains a login and cant be shared publicly)
Expected Result
No errors from the SDK.
Actual Result
Uncaught TypeError: t.spanContext is not a function in the console. By inspecting the code, it is coming from this line: https://github.com/getsentry/sentry-javascript/blob/develop/packages/core/src/utils/spanUtils.ts#L175