Add workaround for cypress.wait for fetch requests

client/cypress/support/index.js

@@ -18,3 +18,9 @@ import './commands'
 
 // Alternatively you can use CommonJS syntax:
 // require('./commands')
+
+// from https://stackoverflow.com/questions/49079005/how-to-stub-a-call-to-graphql-using-cypress#49088084
+Cypress.on('window:before:load', win => {
+  win.fetch = null;
+  win.Blob = null;
+});

client/package-lock.json

@@ -12517,6 +12517,11 @@
       "resolved": "https://registry.npmjs.org/websocket-extensions/-/websocket-extensions-0.1.3.tgz",
       "integrity": "sha512-nqHUnMXmBzT0w570r2JpJxfiSD1IzoI+HGVdd3aZ0yNi3ngvQ4jv1dtHt5VGxfI2yj5yqImPhOK4vmIh2xMbGg=="
     },
+    "whatwg-fetch": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/whatwg-fetch/-/whatwg-fetch-3.0.0.tgz",
+      "integrity": "sha512-9GSJUgz1D4MfyKU7KRqwOjXCXTqWdFNvEr7eUBYchQiVc744mqK/MzXPNR2WsPkmkOa4ywfg8C2n8h+13Bey1Q=="
+    },
     "whet.extend": {
       "version": "0.9.9",
       "resolved": "https://registry.npmjs.org/whet.extend/-/whet.extend-0.9.9.tgz",

client/package.json

@@ -83,7 +83,8 @@
     "webpack": "^3.6.0",
     "webpack-bundle-analyzer": "^2.9.0",
     "webpack-dev-server": "^2.9.1",
-    "webpack-merge": "^4.1.0"
+    "webpack-merge": "^4.1.0",
+    "whatwg-fetch": "^3.0.0"
   },
   "engines": {
     "node": ">= 6.0.0",