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Fragloaderror Review
// Custom event listener document.addEventListener('fragloaderror', (e) => console.error('Fragment load failed:', e.detail); showUserFallback(e.detail.url); ); Use curl , Postman, or fetch in console to test the fragment URL independently.
// Example (jQuery-like) function loadFragment(url, target) $.ajax(url) .done((html) => $(target).html(html)) .fail((jqXHR, textStatus, errorThrown) => $(document).trigger('fragloaderror', url, target, error: textStatus ); ); fragloaderror
curl -I https://example.com/partials/sidebar.html | Solution | Implementation | |----------|----------------| | Add retry logic | Retry failed fragment loads up to 3 times with exponential backoff. | | Provide fallback UI | Show default content or error message instead of the fragment. | | Validate URL before load | Ensure the fragment endpoint exists and is reachable. | | Improve error handling | Log fragloaderror details to monitoring service (e.g., Sentry, LogRocket). | | Use declarative loading | In React: error boundary; in Vue: <component :is="..."> with onError ; in Angular: @Input fallback. | | Preflight CORS | If cross-origin, set appropriate CORS headers on the server. | Example: Safer Fragment Load with Fallback async function safeLoadFragment(url, containerId) const container = document.getElementById(containerId); if (!container) throw new Error('Container missing'); try const response = await fetch(url); if (!response.ok) throw new Error(`HTTP $response.status`); const html = await response.text(); container.innerHTML = html; catch (error) container.innerHTML = `<div class="error">Failed to load content. <button onclick="retryLoad()">Retry</button></div>`; console.error('fragloaderror', url, containerId, error: error.message ); // Optionally dispatch custom event for global handlers window.dispatchEvent(new CustomEvent('fragloaderror', detail: url, containerId, error )); // Custom event listener document
// Custom event listener document.addEventListener('fragloaderror', (e) => console.error('Fragment load failed:', e.detail); showUserFallback(e.detail.url); ); Use curl , Postman, or fetch in console to test the fragment URL independently.
// Example (jQuery-like) function loadFragment(url, target) $.ajax(url) .done((html) => $(target).html(html)) .fail((jqXHR, textStatus, errorThrown) => $(document).trigger('fragloaderror', url, target, error: textStatus ); );
curl -I https://example.com/partials/sidebar.html | Solution | Implementation | |----------|----------------| | Add retry logic | Retry failed fragment loads up to 3 times with exponential backoff. | | Provide fallback UI | Show default content or error message instead of the fragment. | | Validate URL before load | Ensure the fragment endpoint exists and is reachable. | | Improve error handling | Log fragloaderror details to monitoring service (e.g., Sentry, LogRocket). | | Use declarative loading | In React: error boundary; in Vue: <component :is="..."> with onError ; in Angular: @Input fallback. | | Preflight CORS | If cross-origin, set appropriate CORS headers on the server. | Example: Safer Fragment Load with Fallback async function safeLoadFragment(url, containerId) const container = document.getElementById(containerId); if (!container) throw new Error('Container missing'); try const response = await fetch(url); if (!response.ok) throw new Error(`HTTP $response.status`); const html = await response.text(); container.innerHTML = html; catch (error) container.innerHTML = `<div class="error">Failed to load content. <button onclick="retryLoad()">Retry</button></div>`; console.error('fragloaderror', url, containerId, error: error.message ); // Optionally dispatch custom event for global handlers window.dispatchEvent(new CustomEvent('fragloaderror', detail: url, containerId, error ));