Add a fastboot config for field-guide > 3.0.1

demo-app/config/fastboot.js

@@ -0,0 +1,30 @@
+/*
+ * Fastboot runs in a "sandbox" that is by default unaware of Node globals.
+ * Globals used in the demo-app built with field-guide (typically fetch) must
+ * be passed to the sandbox explicitly. Aside from fetch, the content of this
+ * file is rather generic to Ember and EmberData.
+ */
+module.exports = function () {
+  return {
+    buildSandboxGlobals(defaultGlobals) {
+      return Object.assign({}, defaultGlobals, {
+        atob: atob,
+        fetch: fetch,
+        AbortController,
+        ReadableStream:
+          typeof ReadableStream !== 'undefined'
+            ? ReadableStream
+            : require('node:stream/web').ReadableStream,
+        WritableStream:
+          typeof WritableStream !== 'undefined'
+            ? WritableStream
+            : require('node:stream/web').WritableStream,
+        TransformStream:
+          typeof TransformStream !== 'undefined'
+            ? TransformStream
+            : require('node:stream/web').TransformStream,
+        Headers: typeof Headers !== 'undefined' ? Headers : undefined,
+      });
+    },
+  };
+};