[Amplitude] TypeError: Cannot read properties of undefined (reading 'save') in browser console

[Stephen-Neel]

Expected Behavior

No error

Current Behavior

[Amplitude] TypeError: Cannot read properties of undefined (reading 'save') in browser console in below line.

• e._useOldCookie ? e.cookieStorage.set(e.options.cookieName + e._storageSuffix, t) : e._metadataStorage.save(t)

Important

But after logging an event ex. amplitude.getInstance().logEvent('testevent', { type: 'local' }); then if amplitude.setOptOut(true/false) called there is no error!

Steps to Reproduce

1. initialize amplitude.
2. Try to set amplitude.setOptOut(true/false)

Environment

• JS SDK Version: https://cdn.amplitude.com/libs/amplitude-8.4.0-min.gz.js
• Browser and Version: Version 135.0.7049.96 (Official Build) (64-bit)

[Mercy811]

Hi @Stephen-Neel, could you share a website url where we can reproduce this error? Thanks

[Stephen-Neel]

Hi @Stephen-Neel, could you share a website url where we can reproduce this error? Thanks

Hi @Mercy811 Thank you for your response. We found out that we have custom sdk script which will initialize the amplitude (1st time if not initialized before) when we are calling the custom tracking function. This error happening while we are calling the optout without initializing amplitude.