magento 2.3 Design Configuration > Global page keep loading

Question

I'm using magento 2.3 ver, i getting some issue about Design Configuration > Global > page keep loading. but Main Website and Main Website Store is working.

i already rm -rf generated/code var/* pub/static/ and then php bin/magento setup:upgrade php bin/magento setup:di:compile php bin/magento setup:static-content:deploy -f but no luck.

This is Global page message. please help, thank you!

file-uploader.min.js:1 Uncaught ReferenceError: Base64 is not defined
    at UiClass.processFile (file-uploader.min.js:1)
    at Array.map (<anonymous>)
    at UiClass.setInitialValue (file-uploader.min.js:1)
    at UiClass.initialize (abstract.min.js:1)
    at UiClass.initialize (wrapper.min.js:3)
    at new UiClass (class.min.js:3)
    at Object.initComponent (layout.min.js:8)
    at fire (jquery.min.js:212)
    at Object.fireWith [as resolveWith] (jquery.min.js:218)
    at Object.deferred.(/index.php/admin/theme/design_config/edit/scope/default/key/3d098cdba6b78b5b34afeb20d3e1f3d052972a2b3b29bc3d63761/anonymous function) (http://www.domain.com/pub/static/version154399332/adminhtml/Magento/backend/en_US/jquery.min.js:220:56)

Answer 1

Just follow this

Open those files

> /vendor/magento/module-email/view/adminhtml/ui_component/design_config_form.xml
> /vendor/magento/module-catalog/view/adminhtml/ui_component/design_config_form.xml
> /vendor/magento/module-backend/view/adminhtml/ui_component/design_config_form.xml
> /vendor/magento/module-swatches/view/adminhtml/ui_component/design_config_form.xml
> /vendor/magento/module-theme/view/adminhtml/ui_component/design_config_form.xml

search for

formElement="fileUploader"

replace with

formElement="imageUploader"

in all files

clear cache and reload.

Answer 2

You can check fix for this in:

https://github.com/magento/magento2/issues/19549

https://github.com/magento/magento2/pull/18851/commits/ba69bfec127bed8c39c7d9e7b73d10b54449b158