@@ -241,16 +241,21 @@ private void CloseImeComposition()
         private void OnImeComposition(IntPtr hwnd, int lParam)
         {
             string text = string.Empty;
-
+                
             if (ImeHandler.GetResult(hwnd, (uint)lParam, out text))
             {
                 owner.GetBrowserHost().ImeCommitText(text, new Range(int.MaxValue, int.MaxValue), 0);
+                if (languageCodeId == ImeNative.LANG_KOREAN)
+                {
+                    owner.GetBrowserHost().ImeSetComposition(text, new CompositionUnderline[0], new Range(int.MaxValue, int.MaxValue), new Range(0, 0));
+                    owner.GetBrowserHost().ImeFinishComposingText(false);
+                }
             }
             else
             {
                 var underlines = new List<CompositionUnderline>();
                 int compositionStart = 0;
-
+                
                 if (ImeHandler.GetComposition(hwnd, (uint)lParam, underlines, ref compositionStart, out text))
                 {
                     owner.GetBrowserHost().ImeSetComposition(text, underlines.ToArray(),
Original file line number	Diff line number	Diff line change
`@@ -241,16 +241,21 @@ private void CloseImeComposition()`
`241`	`241`	`private void OnImeComposition(IntPtr hwnd, int lParam)`
`242`	`242`	`{`
`243`	`243`	`string text = string.Empty;`
`244`		`-`
	`244`	`+`
`245`	`245`	`if (ImeHandler.GetResult(hwnd, (uint)lParam, out text))`
`246`	`246`	`{`
`247`	`247`	`owner.GetBrowserHost().ImeCommitText(text, new Range(int.MaxValue, int.MaxValue), 0);`
	`248`	`+ if (languageCodeId == ImeNative.LANG_KOREAN)`
	`249`	`+ {`
	`250`	`+ owner.GetBrowserHost().ImeSetComposition(text, new CompositionUnderline[0], new Range(int.MaxValue, int.MaxValue), new Range(0, 0));`
	`251`	`+ owner.GetBrowserHost().ImeFinishComposingText(false);`
	`252`	`+ }`
`248`	`253`	`}`
`249`	`254`	`else`
`250`	`255`	`{`
`251`	`256`	`var underlines = new List<CompositionUnderline>();`
`252`	`257`	`int compositionStart = 0;`
`253`		`-`
	`258`	`+`
`254`	`259`	`if (ImeHandler.GetComposition(hwnd, (uint)lParam, underlines, ref compositionStart, out text))`
`255`	`260`	`{`
`256`	`261`	`owner.GetBrowserHost().ImeSetComposition(text, underlines.ToArray(),`