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Hi. I have a problem running JS. script1:= ' function WebSocketPrinter(options) { '+ ' var defaults = { '+ ' url: "ws://127.0.0.1:12212/printer", '+ ' onConnect: function () { '+ ' }, '+ ' onDisconnect: function () { '+ ' }, '+ ' onUpdate: function () { '+ ' }, '+ ' }; '+ ' var settings = Object.assign({}, defaults, options); '+ ' var websocket; '+ ' var connected = false; '+ ' var onMessage = function (evt) { '+ ' settings.onUpdate(evt.data); '+ ' }; '+ ' var onConnect = function () { '+ ' connected = true; '+ ' settings.onConnect(); '+ ' }; '+ ' var onDisconnect = function () { '+ ' connected = false; '+ ' settings.onDisconnect(); '+ ' reconnect(); '+ ' }; '+ ' var connect = function () { '+ ' websocket = new WebSocket(settings.url); '+ ' websocket.onopen = onConnect; '+ ' websocket.onclose = onDisconnect; '+ ' websocket.onmessage = onMessage; '+ ' }; '+ ' var reconnect = function () { '+ ' connect(); '+ ' }; '+ ' this.submit = function (data) { '+ ' if (Array.isArray(data)) { '+ ' data.forEach(function (element) { '+ ' websocket.send(JSON.stringify(element)); '+ ' }); '+ ' } else { '+ ' websocket.send(JSON.stringify(data)); '+ ' } '+ ' }; '+ ' this.isConnected = function () { '+ ' return connected; '+ ' }; '+ ' connect(); '+ '} ' + ' var printService = new WebSocketPrinter(); '+ ' function printPDFBase64(typ,pdfbase64) { '+ ' printService.submit({ '+ ' ''type'': typ, '+ ' ''url'': ''tuxmed.pdf'', '+ ' ''file_content'': pdfbase64 '+ ' }); '+ ' } '; UniSession.AddJS(script1); I trigger a function with parameters: UniSession.AddJS('printPDFBase64("'+UniApplication.Parameters.Values['gabinet']+'","'+pdf_base64+'")'); I get this error: