TypeError undefined is not an object (evaluating 'lr.api.pushEvent')

[babaykaDev]

Description

I am using the Grafana Faro Web Tracing library for tracing activity on my site. The script is loaded from https://unpkg.com/@grafana/[email protected]/dist/bundle/faro-web-tracing.iife.js. Additionally, I use Sentry for error tracking in my project. Sentry regularly reports the following error for iOS devices, mostly on iOS 17.5:

undefined is not an object (evaluating 'lr.api.pushEvent')

The context from Sentry is provided in the attached JSON file: data.json.

Steps to Reproduce

1. Use a device with iOS 17.5.1.
2. Open Mobile Safari 17.5.
3. Navigate to any page that includes the Grafana Faro Web Tracing script from this URL.

Expected Behavior

The application should function normally without any JavaScript errors.

Actual Behavior

A TypeError appears in the console:

undefined is not an object (evaluating 'lr.api.pushEvent')

Environment

• @grafana/faro-web-sdk: v1.7.3
• PHP: 8.2.0
• Laravel: 10
• OS: iOS 17.5.1
• Browser: Safari 17.5
• Device: iPhone, iPad, Mac (macOS >= 10.15.7)

Demo

Context

Detailed error context and logs can be found in the attached JSON file: data.json.