Slate: Checkbox Example Inconsistent Across Browsers

[Slapbox]

http://slatejs.org/#/check-lists

Firefox works properly, but IE and Chrome do not.

On pressing enter to create a new checkbox line item (with cursor at the end of a line):

Chrome: Creates the checkbox. Cursor disappears and focus is not on the new checkbox

Internet Explorer: Creates the checkbox. Cursor moves to the new line, but focus does not actually move.

Firefox: Creates the checkbox. Cursor moves to the new line and focus moves as well

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• There are similar issues on IE and Chrome on backspacing. Here too, Firefox works fine.
• These issues are not present if you press enter in the middle of text in a checkbox, such that the new checkbox is immediately populated with some text.

[AlbertHilb]

This is related to the onBlurissue described in #853.

[danburzo]

I just want to add that Firefox/macOS also seems to have some problems with clicking on the text for the check items — it randomly selects text or makes the cursor jump to the beginning of the content area.