Fix for https://github.com/magento/baler/issues/6

fix_baler_jquery_cookie.patch

--- a/view/base/requirejs-config.js	2019-10-17 10:01:02.082764376 +0200
+++ b/view/base/requirejs-config.js	2019-10-17 09:56:53.436000000 +0200
@@ -46,7 +46,8 @@
         'tinycolor': 'jquery/spectrum/tinycolor'
     },
     'deps': [
-        'jquery/jquery-migrate'
+        'jquery/jquery-migrate',
+        'jquery/jquery.cookie'
     ],
     'config': {
         'mixins': {

Install this patch with cweagans/composer-patches.

composer.json

...
    "extra": {
        "magento-force": "override",
        "patches": {
            "magento/module-theme": {
                "fix_baler_jquery_cookie": "https://gist.github.com/tdgroot/f95c398c565d9bbb83e0a650cdf67617/raw/69ee2d001ff509d25d1875743e417d914e20fd85/fix_baler_jquery_cookie.patch"
            }
        }
    },
...

Hi,

The code must have changed recently as this advice wasn't working for me, I had to tweak and host my own patch.

-- a/view/base/requirejs-config.js	2019-10-17 10:01:02.082764376 +0200
+++ b/view/base/requirejs-config.js	2019-10-17 09:56:53.436000000 +0200
@@ -47,7 +47,8 @@
         'tinymce': 'tiny_mce/tiny_mce_src'
     },
     'deps': [
-        'jquery/jquery-migrate'
+        'jquery/jquery-migrate',
+        'jquery/jquery.cookie'
     ],
     'config': {
         'mixins': {

Thanks for mentioning composer-patches, that's going to come in handy a lot!