How can i store data more than 5MB with my plguin

i’m developing a plugin to help product manager and developer to share information with figma.

the information will bind to figma node. and the information maybe  some rich text content.

for user experience we need to store the information temporay in user’s local machine. 

but figma.clientStore has the limitation of 5MB peer plugin. 

so, my question is how can i store data more than 5MB 

I tried indexeddb but i got err looks like figma plugin can not use it.