Hop Web on windows copy paste

org.apache.hop.core.exception.HopXmlException: 
Error reading information from XML string : 
test ctrl c & v
Content is not allowed in prolog.
    at org.apache.hop.core.xml.XmlHandler.loadXmlString(XmlHandler.java:708)
    at org.apache.hop.core.xml.XmlHandler.loadXmlString(XmlHandler.java:688)
    at org.apache.hop.core.xml.XmlHandler.loadXmlString(XmlHandler.java:662)
    at org.apache.hop.ui.hopgui.file.pipeline.delegates.HopGuiPipelineClipboardDelegate.pasteXml(HopGuiPipelineClipboardDelegate.java:88)
    at org.apache.hop.ui.hopgui.file.pipeline.HopGuiPipelineGraph.pasteFromClipboard(HopGuiPipelineGraph.java:5185)
    at org.apache.hop.ui.hopgui.file.pipeline.HopGuiPipelineGraph.pasteFromClipboard(HopGuiPipelineGraph.java:5180)
    at org.apache.hop.ui.hopgui.HopGui.menuEditPaste(HopGui.java:734)
    at sun.reflect.GeneratedMethodAccessor69.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.apache.hop.ui.core.gui.GuiMenuWidgets.lambda$addMenuWidgets$0(GuiMenuWidgets.java:129)
    at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:109)
    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:687)
    at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:594)
    at org.eclipse.swt.widgets.MenuItem.handleAcceleratorActivation(MenuItem.java:687)
    at org.eclipse.swt.widgets.AcceleratorBinding.handleEvent(AcceleratorBinding.java:35)
    at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:109)
    at org.eclipse.swt.widgets.Display.filterEvent(Display.java:1820)
    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:685)
    at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:594)
    at org.eclipse.swt.widgets.Display.executeNextEvent(Display.java:1217)
    at org.eclipse.swt.widgets.Display.runPendingMessages(Display.java:1198)
    at org.eclipse.swt.widgets.Display.safeReadAndDispatch(Display.java:1181)
    at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:1173)
    at org.apache.hop.ui.core.dialog.BaseDialog.defaultShellHandling(BaseDialog.java:480)
    at org.apache.hop.pipeline.transforms.sql.ExecSqlDialog.open(ExecSqlDialog.java:533)
    at org.apache.hop.ui.hopgui.file.pipeline.delegates.HopGuiPipelineTransformDelegate.editTransform(HopGuiPipelineTransformDelegate.java:158)
    at org.apache.hop.ui.hopgui.file.pipeline.HopGuiPipelineGraph.editTransform(HopGuiPipelineGraph.java:3293)
    at org.apache.hop.ui.hopgui.file.pipeline.HopGuiPipelineGraph.mouseUp(HopGuiPipelineGraph.java:870)
    at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:242)
    at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:109)
    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:687)
    at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:594)
    at org.eclipse.swt.widgets.Display.executeNextEvent(Display.java:1217)
    at org.eclipse.swt.widgets.Display.runPendingMessages(Display.java:1198)
    at org.eclipse.swt.widgets.Display.safeReadAndDispatch(Display.java:1181)
    at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:1173)
    at org.apache.hop.ui.core.dialog.BaseDialog.defaultShellHandling(BaseDialog.java:480)
    at org.apache.hop.workflow.actions.checkdbconnection.ActionCheckDbConnectionsDialog.open(ActionCheckDbConnectionsDialog.java:216)
    at org.apache.hop.ui.hopgui.file.workflow.delegates.HopGuiWorkflowActionDelegate.editAction(HopGuiWorkflowActionDelegate.java:233)
    at org.apache.hop.ui.hopgui.file.workflow.HopGuiWorkflowGraph.editAction(HopGuiWorkflowGraph.java:2770)
    at org.apache.hop.ui.hopgui.file.workflow.HopGuiWorkflowGraph.mouseUp(HopGuiWorkflowGraph.java:716)
    at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:242)
    at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:109)
    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:687)
    at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:594)
    at org.eclipse.swt.widgets.Display.executeNextEvent(Display.java:1217)
    at org.eclipse.swt.widgets.Display.runPendingMessages(Display.java:1198)
    at org.eclipse.swt.widgets.Display.safeReadAndDispatch(Display.java:1181)
    at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:1173)
    at org.eclipse.rap.rwt.application.AbstractEntryPoint.createUI(AbstractEntryPoint.java:69)
    at org.eclipse.rap.rwt.internal.lifecycle.RWTLifeCycle.createUI(RWTLifeCycle.java:177)
    at org.eclipse.rap.rwt.internal.lifecycle.RWTLifeCycle$UIThreadController.run(RWTLifeCycle.java:290)
    at java.lang.Thread.run(Thread.java:748)
    at org.eclipse.rap.rwt.internal.lifecycle.UIThread.run(UIThread.java:107)
Caused by: org.xml.sax.SAXParseException; lineNumber: 1; columnNumber: 1; Content is not allowed in prolog.
    at org.apache.xerces.parsers.DOMParser.parse(Unknown Source)
    at org.apache.xerces.jaxp.DocumentBuilderImpl.parse(Unknown Source)
    at org.apache.hop.core.xml.XmlHandler.loadXmlString(XmlHandler.java:699)
    ... 54 more