Initial commit (by create-cloudflare CLI)

node_modules/rollup-plugin-node-polyfills/polyfills/http-lib/capability.js

@@ -0,0 +1,52 @@
+export var hasFetch = isFunction(global.fetch) && isFunction(global.ReadableStream)
+
+var _blobConstructor;
+export function blobConstructor() {
+  if (typeof _blobConstructor !== 'undefined') {
+    return _blobConstructor;
+  }
+  try {
+    new global.Blob([new ArrayBuffer(1)])
+    _blobConstructor = true
+  } catch (e) {
+    _blobConstructor = false
+  }
+  return _blobConstructor
+}
+var xhr;
+
+function checkTypeSupport(type) {
+  if (!xhr) {
+    xhr = new global.XMLHttpRequest()
+    // If location.host is empty, e.g. if this page/worker was loaded
+    // from a Blob, then use example.com to avoid an error
+    xhr.open('GET', global.location.host ? '/' : 'https://example.com')
+  }
+  try {
+    xhr.responseType = type
+    return xhr.responseType === type
+  } catch (e) {
+    return false
+  }
+
+}
+
+// For some strange reason, Safari 7.0 reports typeof global.ArrayBuffer === 'object'.
+// Safari 7.1 appears to have fixed this bug.
+var haveArrayBuffer = typeof global.ArrayBuffer !== 'undefined'
+var haveSlice = haveArrayBuffer && isFunction(global.ArrayBuffer.prototype.slice)
+
+export var arraybuffer = haveArrayBuffer && checkTypeSupport('arraybuffer')
+  // These next two tests unavoidably show warnings in Chrome. Since fetch will always
+  // be used if it's available, just return false for these to avoid the warnings.
+export var msstream = !hasFetch && haveSlice && checkTypeSupport('ms-stream')
+export var mozchunkedarraybuffer = !hasFetch && haveArrayBuffer &&
+  checkTypeSupport('moz-chunked-arraybuffer')
+export var overrideMimeType = isFunction(xhr.overrideMimeType)
+export var vbArray = isFunction(global.VBArray)
+
+function isFunction(value) {
+  return typeof value === 'function'
+}
+
+xhr = null // Help gc