Defaulted to an empty circuit. Failed to understand circuit from URL.

URL
https://algassert.com/quirk#circuit=%7B%2522cols%2522:%5B%5B%2522H%2522,%2522H%2522,%2522H%2522,%2522H%2522,%2522H%2522,%2522H%2522,%2522H%2522,%2522H%2522%5D,%5B%2522ZDetector%2522,%2522ZDetector%2522,%2522ZDetector%2522,%2522ZDetector%2522,%2522ZDetector%2522,%2522ZDetector%2522,%2522ZDetector%2522,%2522ZDetector%2522%5D%5D%7D

BROWSER
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.0.1 Safari/605.1.15
Netscape
5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.0.1 Safari/605.1.15

RECOVERY DETAILS
{"document_location_hash": "#circuit=%7B%2522cols%2522:%5B%5B%2522H%2522,%2522H%2522,%2522H%2522,%2522H%2522,%2522H%2522,%2522H%2522,%2522H%2522,%2522H%2522%5D,%5B%2522ZDetector%2522,%2522ZDetector%2522,%2522ZDetector%2522,%2522ZDetector%2522,%2522ZDetector%2522,%2522ZDetector%2522,%2522ZDetector%2522,%2522ZDetector%2522%5D%5D%7D"}

ERROR OBJECT
SyntaxError: JSON Parse error: Unrecognized token '%'

ERROR LOCATION
parse@[native code]
o@https://algassert.com/quirk:363:208164
c@https://algassert.com/quirk:363:529958
t@https://algassert.com/quirk:363:530272
@https://algassert.com/quirk:363:417542
@https://algassert.com/quirk:363:3476
get@https://algassert.com/quirk:363:4324
global code@https://algassert.com/quirk:363:577480