Fix compdemocracy/polis#1686

[youchenlee]

document.origin is deprecated, the value is undefined on my Chrome (114.0.5735.106).
Replaced by self.origin

[ballPointPenguin]

Thanks for finding this. We'll test a few things and likely approve and merge soon.

Additional context: https://udn.realityripple.com/docs/Web/API/Document/origin

[ballPointPenguin]

There are a few instances of documenet.location.origin that likely need to be updated as well.

[ballPointPenguin]

There are a few instances of documenet.location.origin that likely need to be updated as well.

Update: It seems like document.location.origin is still probably fine
https://udn.realityripple.com/docs/Web/API/Location/origin

[ballPointPenguin]

document.domain is also deprecated and occurs in client-report/src/util/url.js but I will update that in a different piece of work dealing with client-report generally