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[1] Issue 1854963002: Remove the default backspace event handler. - Code Review ( ()) https://codereview.chromium.org/1854963002

[2] Issue 608016 - chromium - Can't navigate back using the backspace key - Monorail ( ()) https://bugs.chromium.org/p/chromium/issues/detail?id=608016

[3] 1041377 - Disable Backspace as a shortcut for navigating back in history, https://bugzilla.mozilla.org/show_bug.cgi?id=1041377