Init

client/.nuxt/jsonp.js

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+const chunks = {} // chunkId => exports
+const chunksInstalling = {} // chunkId => Promise
+const failedChunks = {}
+
+function importChunk(chunkId, src) {
+  // Already installed
+  if (chunks[chunkId]) {
+    return Promise.resolve(chunks[chunkId])
+  }
+
+  // Failed loading
+  if (failedChunks[chunkId]) {
+    return Promise.reject(failedChunks[chunkId])
+  }
+
+  // Installing
+  if (chunksInstalling[chunkId]) {
+    return chunksInstalling[chunkId]
+  }
+
+  // Set a promise in chunk cache
+  let resolve, reject
+  const promise = chunksInstalling[chunkId] = new Promise((_resolve, _reject) => {
+    resolve = _resolve
+    reject = _reject
+  })
+
+  // Clear chunk data from cache
+  delete chunks[chunkId]
+
+  // Start chunk loading
+  const script = document.createElement('script')
+  script.charset = 'utf-8'
+  script.timeout = 120
+  script.src = src
+  let timeout
+
+  // Create error before stack unwound to get useful stacktrace later
+  const error = new Error()
+
+  // Complete handlers
+  const onScriptComplete = script.onerror = script.onload = (event) => {
+    // Cleanups
+    clearTimeout(timeout)
+    delete chunksInstalling[chunkId]
+
+    // Avoid mem leaks in IE
+    script.onerror = script.onload = null
+
+    // Verify chunk is loaded
+    if (chunks[chunkId]) {
+      return resolve(chunks[chunkId])
+    }
+
+    // Something bad happened
+    const errorType = event && (event.type === 'load' ? 'missing' : event.type)
+    const realSrc = event && event.target && event.target.src
+    error.message = 'Loading chunk ' + chunkId + ' failed.\n(' + errorType + ': ' + realSrc + ')'
+    error.name = 'ChunkLoadError'
+    error.type = errorType
+    error.request = realSrc
+    failedChunks[chunkId] = error
+    reject(error)
+  }
+
+  // Timeout
+  timeout = setTimeout(() => {
+    onScriptComplete({ type: 'timeout', target: script })
+  }, 120000)
+
+  // Append script
+  document.head.appendChild(script)
+
+  // Return promise
+  return promise
+}
+
+export function installJsonp() {
+  window.__NUXT_JSONP__ = function (chunkId, exports) { chunks[chunkId] = exports }
+  window.__NUXT_JSONP_CACHE__ = chunks
+  window.__NUXT_IMPORT__ = importChunk
+}