Get the URL from the current user's profile via REST, the image tag used to display when the src is updated:
/_api/sp.userprofiles.peoplemanager/getmyproperties endpoint which returns PersonalUrl property, user profile picture could be requested via _layouts/15/userphoto.aspx?size=&accountname= page, where
size - could be set to S/M/L which stands for Small/Medium/Large image size
accountname - user account name
example : [src='/_layouts/15/userphoto.aspx?size=L&accountname=username@contoso.com' ]
/_api/sp.userprofiles.peoplemanager/getmyproperties endpoint which returns PersonalUrl property, user profile picture could be requested via _layouts/15/userphoto.aspx?size=&accountname= page, where
size - could be set to S/M/L which stands for Small/Medium/Large image size
accountname - user account name
example : [src='/_layouts/15/userphoto.aspx?size=L&accountname=username@contoso.com' ]