h1.Problem

The JS exception "Cannot read property 'length' of undefined" happend.

Can the reason be, that the range (coming from startSpellCheck) is false? I tried to simulate this but got other errors then.

However, I think in getPositionInfoForRanges we could / should check if range is empty to prevent that or similar errors.

Browser:	Chrome 66.0.3359.181
OS:	Ubuntu Chromium
Window size:	1301 x 441
Device pixel ratio:	1
UserAgent:	Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Ubuntu Chromium/66.0.3359.181 Chrome/66.0.3359.181 Safari/537.36
Touch:
Language:	en-US
Installed Plugins:	Chromium PDF Plugin Portable Document Format Chromium PDF Viewer

Stack:
Object.getNodeLength	@ rangy-core.js:547:44
WrappedRange.rangeProto.selectNodeContents	@ rangy-core.js:2360:54
constructor.getPositionInfoForRange	@ Range.js:376:19
constructor.getContainerForCharacterNextToCaret	@ Range.js:174:35
constructor.useWorkaroundForBookmark	@ Range.js:554:33
constructor.getPositionOfCaret	@ Range.js:666:23
constructor.startSpellCheck	@ Editor.js:420:34
constructor.handleAfterContentUpdate	@ Editor.js:394:12
constructor.fire	@ ext-all-debug.js:20731:42
constructor.dispatch	@ ext-all-debug.js:57952:48