• ID collision Show conflict ID's
• state-attributes state-driven SVG: fetching - ready - ready-links
• Loading Strategies eager · defer · idle · lazy
• Sanitize DOMPurify · shadow DOM
• srcset responsive · width descriptors
• srcset + Responsive ResizeObserver · auto swap
• base core usage · minimal setup
• base-playground interactive demo · examples
• No Cache cache · no-cache
• Cache Visualizer see how the cache works