Regression on upgrade from cordova-ios@5.1.1 to cordova-ios@6.1.0

This is an MVCE showing that ionic1 apps run using cordova-plugin-ionic-webview stop working on upgrade from cordova-ios@5.1.1 to cordova-ios@6.1.0

This repository contains two directories. The directories contain a minimal ionic1 sample project, copied from https://github.com/ccoenraets/directory-angular-ionic, courtesy @ccoenraets

The only difference between them is the cordova-ios version.

$ diff -r -uw working_copy broken_copy
diff -r -uw working_copy/package.json broken_copy/package.json
--- working_copy/package.json	2020-07-15 20:56:06.000000000 -0700
+++ broken_copy/package.json	2020-07-15 20:54:30.000000000 -0700
@@ -30,7 +30,7 @@
     }
   },
   "dependencies": {
-    "cordova-ios": "^5.1.1",
+    "cordova-ios": "^6.1.0",
     "cordova-plugin-ionic": "5.4.7",
     "cordova-plugin-ionic-webview": "5.0.0"
   }

Initial setup

This sets up node, npm and cocoapods correctly. It uses nvm for the node install so it won't affect any existing setup. Alternatively, you can install the dependencies from setup/export_shared_dep_versions.sh manually.

$ bash setup/setup_ios_native.sh

Working setup

Note that this sets up the node dependencies locally in the node_modules in the working_copy directory.

$ cd working_copy
$ npm install
$ npx cordova prepare
$ npx cordova emulate ios

Broken setup

Note that this sets up the node dependencies locally in the node_modules in the broken_copy directory.

$ cd broken_copy
$ npm install
$ npx cordova prepare
$ npx cordova emulate ios

Result

Working copy	Broken copy