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PWA Bundle
1.2.x
1.2.x
  • PHPWA Bundle
  • How To Create A PWA?
  • How To Install/Remove A PWA?
  • Bundle Installation
  • Development
  • Events
  • Deployment
  • Debugging
  • The Manifest
    • Application Information
      • Scope
      • ID
      • Direction and Language
      • Orientation
      • Description
      • IARC Rating ID
      • Categories
    • Icons
    • Screenshots
    • Shortcuts
    • Protocol Handlers
    • File Handlers
    • Share Target
    • Complete Example
  • The Service Worker
    • Configuration
    • Content Security Policy
    • Custom Service Worker Rule
    • Custom Cache Strategies
    • Workbox
      • Site Manifest Cache
      • Asset Caching
      • Resource Caching
      • Image Caching
      • Font Caching
      • Offline Fallbacks
      • BackgoundSync
      • CDN and Versions
      • Cache Cleaning
      • Custom Cache Strategy
    • Push Notifications
    • Complete Example
  • Favicons
    • Create Favicons
  • Symfony UX
    • Connection Status
    • Prefetch on demand
    • Sync Broadcast
    • BackgroundSync Form
  • Image Management
    • Icons
    • Screenshots
  • Experimental Features
    • Non-Standard Parameters
      • Launch Handler
      • Display Override
      • Related Applications
      • EDGE Side Panel
    • Translations
    • Widgets (Win10+)
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  1. The Service Worker
  2. Workbox

Image Caching

By default, a maximum of 60 images are cached for 1 year. The supported image extensions extensions are as follows: 

/\.(ico|png|jpe?g|gif|svg|webp|bmp)$/

This can be changed using the next configuration options

/config/packages/pwa.yaml
pwa:
    serviceworker:
        enabled: true
        src: "sw.js"
        workbox:
            image_cache:
                enabled: true
                max_age: 30 days
                max_entries: 200
                regex: '/\.(png|jpe?g|svg|webp)$/'

This cache is different from the Asset one as it corresponds to images that are not managed by Asset Mapper

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