fix(editor): proper length check for history when going back in editor #3960
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Fixes #3951
Using
history. goBack
was introduced in #3716 in order to preserve the URL state (and collection filter state) when exiting the editor.The current
history.length
doesn't work when the CMS is opened from another page using a link withtarget="_blank"
.Also see https://stackoverflow.com/questions/3588315/how-to-check-if-the-user-can-go-back-in-browser-history-or-not#answer-36645802