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)

2 Answers 2


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


replace with


in all files

clear cache and reload.

  • works for me! I edited core and i liked it!
    – Vvvaida
    Commented Mar 15, 2019 at 14:00
  • @Vvvaida can we override this in our theme ?(without edited core files) Commented May 20, 2019 at 10:11

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