How to check Hidden Divs and dcc.Store?

I have a mix of both on my app saving dataframes in json format.
During debugging I get weird errors like Invalid buffer or something (I have another question on the forum about it) when using pd.read_json() so I want to make sure what’s put there is there.
Is there any way to inspect html or anything else for that matter to see if the json is actually there?

I’m not sure if I understand your question,
why not putting the dcc.Store id ‘data’ property as input in a callback and checking the info there?

That is true. I’ll comb their repo for the implementation.