Viewerframe Mode Refresh Hot [BEST]

function mountViewer() { const unsub = eventBus.subscribe('mode-change', handler); onUnmount(() => unsub()); } Versioned async operations:

// prepare resources await prepareResourcesFor(mode); if (currentInitId !== initId) return; // stale, abort viewerframe mode refresh hot

async function activateMode(instanceId, mode) { const initId = Symbol(); currentInitId = initId; function mountViewer() { const unsub = eventBus

let modeVersion = 0;