- Go to https://www.mediawiki.org/wiki/Wikimedia_Audiences?veaction=edit&action=edit
- Place the cursor at the top of the page and click "Insert" -> "More" -> "Basic reference"
- Type some dummy text into the "Write or past your reference here..." field
- Click "Insert"
Result: Nothing happens, VE gets stuck indefinitely with the dialog box still open (and the progress animation with the diagonal bars running), with the below error message shown in the console. Clicking "Cancel" does nothing either. Any other changes already made to the page before trying to insert the footnote are lost.
(This is a translatable page and VE shows a note that editing these is not yet officially supported; but even so, a more graceful fail would be highly preferable.)
Uncaught TypeError: Cannot read property 'getDataFromNode' of null at VeCeTextNode.ve.ce.TextNode.getAnnotatedHtml (load.php?debug=false&lang=en&modules=ext.CodeMirror.lib|ext.visualEditor.core&skin=vector&version=17nx4eq:784) at VeCeParagraphNode.ve.ce.ContentBranchNode.getRenderedContents (load.php?debug=false&lang=en&modules=ext.CodeMirror.lib|ext.visualEditor.core&skin=vector&version=17nx4eq:625) at VeCeParagraphNode.ve.ce.ContentBranchNode.renderContents (load.php?debug=false&lang=en&modules=ext.CodeMirror.lib|ext.visualEditor.core&skin=vector&version=17nx4eq:628) at VeCeParagraphNode.ve.ce.ContentBranchNode.onSplice (load.php?debug=false&lang=en&modules=ext.CodeMirror.lib|ext.visualEditor.core&skin=vector&version=17nx4eq:623) at VeDmParagraphNode.oo.EventEmitter.emit (<anonymous>:8:445) at VeDmParagraphNode.ve.dm.BranchNode.splice (load.php?debug=false&lang=en&modules=ext.CodeMirror.lib|ext.visualEditor.core&skin=vector&version=17nx4eq:324) at VeDmTreeModifier.ve.dm.TreeModifier.removeNode (load.php?debug=false&lang=en&modules=ext.CodeMirror.lib|ext.visualEditor.core&skin=vector&version=17nx4eq:399) at VeDmTreeModifier.ve.dm.TreeModifier.removeLast (load.php?debug=false&lang=en&modules=ext.CodeMirror.lib|ext.visualEditor.core&skin=vector&version=17nx4eq:405) at VeDmTreeModifier.ve.dm.TreeModifier.processRemove (load.php?debug=false&lang=en&modules=ext.CodeMirror.lib|ext.visualEditor.core&skin=vector&version=17nx4eq:403) at VeDmTreeModifier.ve.dm.TreeModifier.processOperation (load.php?debug=false&lang=en&modules=ext.CodeMirror.lib|ext.visualEditor.core&skin=vector&version=17nx4eq:396) at VeDmTreeModifier.ve.dm.TreeModifier.process (load.php?debug=false&lang=en&modules=ext.CodeMirror.lib|ext.visualEditor.core&skin=vector&version=17nx4eq:395) at VeDmTransactionProcessor.ve.dm.TransactionProcessor.process (load.php?debug=false&lang=en&modules=ext.CodeMirror.lib|ext.visualEditor.core&skin=vector&version=17nx4eq:346) at VeDmDocument.ve.dm.Document.commit (load.php?debug=false&lang=en&modules=ext.CodeMirror.lib|ext.visualEditor.core&skin=vector&version=17nx4eq:456) at VeDmSurface.ve.dm.Surface.changeInternal (load.php?debug=false&lang=en&modules=ext.CodeMirror.lib|ext.visualEditor.core&skin=vector&version=17nx4eq:421) at VeDmSurface.ve.dm.Surface.change (load.php?debug=false&lang=en&modules=ext.CodeMirror.lib|ext.visualEditor.core&skin=vector&version=17nx4eq:420) at VeDmMWReferenceModel.ve.dm.MWReferenceModel.updateInternalItem (<anonymous>:600:528) at VeUiMWReferenceDialog.<anonymous> (<anonymous>:641:165) at <anonymous>:43:113 at OO.ui.Process.execute (<anonymous>:43:760) at VeUiMWReferenceDialog.OO.ui.Dialog.executeAction (<anonymous>:65:422) at VeUiMWReferenceDialog.OO.ui.ProcessDialog.executeAction (<anonymous>:73:426) at VeUiMWReferenceDialog.OO.ui.Dialog.onActionClick (<anonymous>:63:470) at OoUiActionSet.oo.EventEmitter.emit (<anonymous>:8:445) at OoUiActionWidget.oo.EventEmitter.emit (<anonymous>:8:445) at OoUiActionWidget.OO.ui.mixin.ButtonElement.onClick (load.php?debug=false&lang=en&modules=oojs-ui-core%2Coojs-ui-widgets|oojs-ui.styles.icons-editing-advanced&skin=vector&version=02k9fi5:25) at HTMLAnchorElement.dispatch (load.php?debug=false&lang=en&modules=jquery%2Cmediawiki|mediawiki.legacy.wikibits&only=scripts&skin=vector&version=0b7sr5a:69) at HTMLAnchorElement.elemData.handle (load.php?debug=false&lang=en&modules=jquery%2Cmediawiki|mediawiki.legacy.wikibits&only=scripts&skin=vector&version=0b7sr5a:66)