Question is very simple (to ask)
Is there any way to inject script into tab containing only image
and have URL in form of:
data:image/png;base64,iVBORw0K....
console gives me error:
Cannot access contents of url "data:image/png;base64,iVBORw0K....
Looks like the answer is "no". data: URIs are not supported by permissions.
Even "activeTab" or "<all_urls>" permission does not grant the required rights.
A glance on the Chromium bug tracker did not find an existing feature request for that - you may try your luck.