This bug appears in textarea as well as contenteditable. Tested with MS IME and ATOP2016. Steps To Reproduce: 1. Open data:text/html,<textarea>blabla</textarea><textarea></textarea> 2. IME on 3. Select all text in the 1st textarea 4. Drag & drop the selected text to the 2nd textarea 5. Optionally click on the 2nd textarea. 6. Type some text with the IME, and conversion and commit. 7. Select all text in the 2nd textarea 8. Drag & drop the selected text to the 1st textarea 9. Optionally click on the 1st textarea. 10. Type some text with the IME, and conversion and commit. Actual Results: -Composition text does not appear at step 6 & step 10. -Candidate text popup appears wrong position at step 6. Candidate text popup appears as expected at step 10. -The commit text does not appear at step 10. Expected Results: -The typed text should appear and commit properly. Regression window: (On good builds, step 11 does not work, but IME works correctly) https://hg.mozilla.org/integration/autoland/pushloghtml?fromchange=cae6a2e1838b522f7e940d41db2b61299f9e2b18&tochange=f2637cbcc2ca75be447689fd66baa0e5bfd07c66
Bug 1725802 Comment 0 Edit History
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This bug appears in textarea as well as contenteditable. Tested with MS IME and ATOP2016. Steps To Reproduce: 1. Open data:text/html,<textarea>blabla</textarea><textarea></textarea> 2. IME on 3. Select all text in the 1st textarea 4. Drag & drop the selected text to the 2nd textarea 5. Optionally click on the 2nd textarea. 6. Type some text with the IME, and conversion and commit. 7. Select all text in the 2nd textarea 8. Drag & drop the selected text to the 1st textarea 9. Optionally click on the 1st textarea. 10. Type some text with the IME, and conversion and commit. Actual Results: -Composition text does not appear at step 6 & step 10. -Candidate text popup appears wrong position at step 6. Candidate text popup appears as expected at step 10. -The commit text does not appear at step 10. Expected Results: -The typed text should appear and commit properly. Regression window: (On good builds, step 8 does not work, but IME works correctly) https://hg.mozilla.org/integration/autoland/pushloghtml?fromchange=cae6a2e1838b522f7e940d41db2b61299f9e2b18&tochange=f2637cbcc2ca75be447689fd66baa0e5bfd07c66