You can try using the Network monitor of Chrome (press F12
and click the Network
tab in the tool that appears) and checking what is happening with the Telerik.Web.UI.SpellCheckHandler.axd
request that is performed by the RadSpell control when the "Spell Checking in progress...." message appears. If the message is not removed, this usually means problems with the server code that does the spellchecking. The response to the Telerik.Web.UI.SpellCheckHandler.axd
should contain the server error.
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