Bug Report

• Package version(s): 2.21.0
• Browser and OS versions: IE11

Priorities and help requested (not applicable if asking question):

Are you willing to submit a PR to fix? (No)

Requested priority: (Normal)

Products/sites affected: SearchBox

Describe the issue:

The input element in the SearchBox component still uses onChange instead of onInput (as TextField does #1077) resulting in missed keystrokes and warped input value when the app runs in IE11.

Actual behavior:

When typing "fast" keystrokes are missed due to change event handler

Expected behavior:

Input text value should be exactly as typed