FIX warning of loading prop not being a string (#7080)
FIX warning of loading prop not being a string (#7080)

FIX warning of loading prop not being a string
storybooks/storybook,storybooks/storybook,kadirahq/react-storybook,storybooks/react-storybook,storybooks/storybook,storybooks/storybook,kadirahq/react-storybook,storybooks/react-storybook,storybooks/storybook,storybooks/react-storybook,storybooks/storybook,storybooks/react-storybook,storybooks/storybook