Hi,
Im using the embedded timeline and everything is working fine until today (2021-07-31).
But since today I get the following error when I try to call:

twttr.widgets.createTimeline

Error:

Error TypeError: Cannot read property 'slice' of undefined
    at Object.get (widgets.js:8)
    at t.exports (widgets.js:8)
    at widgets.js:1
    at ZoneDelegate.push../node_modules/zone.js/dist/zone.js.ZoneDelegate.invoke (zone.js:386)
    at Object.onInvoke (core.js:28185)
    at ZoneDelegate.push../node_modules/zone.js/dist/zone.js.ZoneDelegate.invoke (zone.js:385)
    at Zone.push../node_modules/zone.js/dist/zone.js.Zone.run (zone.js:143)
    at zone.js:891
    at ZoneDelegate.push../node_modules/zone.js/dist/zone.js.ZoneDelegate.invokeTask (zone.js:421)
    at Object.onInvokeTask (core.js:28173)

Has anybody the same problem or has twitter changed something?

Best regards

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@SleeplessFox this appear to be a duplicate of Cannot read property 'slice' of undefined error when trying to embed Timeline - #8 by A7rRay

A fix has been deployed. Please let us know if the issue persists

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