How to catch a JSON error preventing page load

After my computer has been idle for a while and I load a page, I sometimes get an error like

SyntaxError: JSON.parse: unexpected character at line 2 column 5 of the JSON data

and the page does not load

I can refresh the page and the error disappear and the site works as normal.

Until I figure out the source of the problem, is there any javascript or jQuery way to catch that error and force the page to reload?