Renders an iframe that is populated by auto-submitting a hidden POST form, passing a CustomerIndentifier value to the remote URL.
IFRAMEFORM — set as ReportType in def_report.
def Render(self, Param1="", Param2="", Param3="") -> str:
Each query row supplies: remote URL (col 0), form value/customer identifier (col 1), title (col 2), button label (col 3), controller path (col 4), action (col 5). A hidden form targeting the iframe is created and immediately submitted via JavaScript. Iframe height is controlled by self._Height. If the URL does not start with htt, https:// is prepended.