@@ -245,6 +245,11 @@ private void OnImeComposition(IntPtr hwnd, int lParam)
             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
             {
Original file line number	Diff line number	Diff line change
`@@ -245,6 +245,11 @@ private void OnImeComposition(IntPtr hwnd, int lParam)`
`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`	`{`