> ## Documentation Index
> Fetch the complete documentation index at: https://www.checklyhq.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Trouble Shotting and Debugging

> Learn how to troubleshoot browser checks.

## Common Issues

> **Element Selection Problems**
>
> **Issue: Elements not found or interactions failing**
>
> **Solutions**:
>
> 1. Use browser dev tools to test selectors
> 2. Add explicit waits for dynamic content
> 3. Use more specific or stable selectors
> 4. Check for iframe or shadow DOM elements

> **Timing and Race Conditions**
>
> **Issue: Tests failing due to timing issues**
>
> **Solutions**:
>
> 1. Use `waitForSelector()` instead of fixed delays
> 2. Wait for network requests to complete
> 3. Use `waitForLoadState()` for page readiness
> 4. Implement proper error handling and retries

> **Authentication and Session Issues**
>
> **Issue: Login failures or session timeouts**
>
> **Solutions**:
>
> 1. Verify credentials are correct and active
> 2. Handle multi-factor authentication scenarios
> 3. Use session storage for authentication state
> 4. Test login flow separately from main workflow

> **Performance and Timeout Issues**
>
> **Issue: Tests timing out or running too slowly**
>
> **Solutions**:
>
> 1. Optimize page load performance
> 2. Increase timeout values for slow operations
> 3. Use parallel execution where possible
> 4. Monitor and alert on performance degradation

## Error Handling and Debugging

> **Wait Strategies**
>
> ```typescript theme={null}
> // Wait for specific conditions
> await page.waitForSelector('[data-testid="loading-complete"]')
> await page.waitForURL('**/dashboard')
> await page.waitForFunction(() => window.dataLoaded === true)
>
> // Wait for network requests
> await page.waitForResponse(response => 
>   response.url().includes('/api/user') && response.status() === 200
> )
>
> // Timeout configuration
> await page.waitForSelector('.slow-element', { timeout: 30000 })
> ```

> **Error Recovery**
>
> ```typescript theme={null}
> // Graceful error handling
> try {
>   await page.click('.optional-popup-close', { timeout: 5000 })
> } catch (error) {
>   // Continue if popup doesn't appear
>   console.log('No popup to close')
> }
>
> // Conditional interactions
> const isLoggedIn = await page.locator('.user-menu').isVisible()
> if (!isLoggedIn) {
>   await page.click('.login-button')
>   // Handle login flow
> }
> ```


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