Windows IME Composition Issue

A known issue has been identified with the Input Method Editor(IME) when inputting composite characters. If the user changes focus out of the input element without completing the IME composition, the input text may get duplicated. This behavior occurs because the IME composition is not properly finalized before the focus change, leading to unintended text duplication.

Reproduction Environment

• Operating Systems:

  • Windows 10

  • Windows 11

• Input Method Editor (IME):

  • New IME mode

• Browsers:

  • Affected: Chrome, Edge

  • Not Affected: Firefox, Safari

• Conditions:

  • Text selection occurs when an element gains focus.

Reproduction Steps

This issue is not specific to Wijmo and can be reproduced with a standard HTML input element. It is a limitation of the new IME and the browser’s handling of IME composition events.

To verify this behavior, you can use the following example: IME Behavior Test.

Possible Solutions

1. Complete the IME Composition Before Moving Focus: Ensure that the IME (Input Method Editor) composition is finalized before shifting focus away from the input editor. To complete the IME composition, press the Enter key.

2. Switch to the Previous IME Mode: Update your system settings to use the previous version of the IME. For instructions on how to select the "Use previous version of Microsoft IME" option in Windows 10 and 11, refer to the following Microsoft article