Support base64 images during export

Description

During the export there are several images, that comes from base 64 encoding.
Example (the data comes from the src attribute):
"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAD6CAYAAACPpxFEAAAxk0lEQVR42u2dCXzT9fnHRUH/4AE6BcXpxnCCCOgUmHOygXNuok7UuenccN4yQQYo11ABZaJFYeWq..."

Environment

None

Preliminary Test Cases

None

Assignee

András Németh

Reporter

András Németh

Labels

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Access to limited visibility issues

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Product platform

None

Time tracking

6h

Fix versions

Priority

Major
Configure