Add "allow-same-origin" value to iframe's attribute sandbox

I'm developing a custom visual for map visualization and encounter the following error: 

"Uncaught DOMException: Failed to read the 'sessionStorage' property from 'Window': The document is sandboxed and lacks the 'allow-same-origin' flag."

So is there anyway to add the "allow-same-origin" flag to the iframe that load my visual?