Using odoo9:
1. Select multiple documents to print brings this error:
https://xxxx/web?#min=1&limit=80&view_type=list&model=account.invoice&action=238&menu_id=158:1
Traceback:
SyntaxError: Unexpected token T in JSON at position 0
at Object.parse (native)
at HTMLIFrameElement.<anonymous> (https://xxxx/web/static/src/js/framework/ajax.js:232:40)
at HTMLIFrameElement.dispatch (https://xxxx/web/static/lib/jquery/jquery.js:4641:58)
at HTMLIFrameElement.elemData.handle (https://xxxx/web/static/lib/jquery/jquery.js:4309:63)