Edge: Spell Checking not working as expected

[QuarkRobot]

Issue Summary

Spell checking on Edge does not work correctly. If spell checking is OFF then Edge won't do it.

If you toggle spell checking ON then the list of spelling options in the right+click context menu are missing. If you cannot spell a word, you have to copy it into Bing or Word to get a suggestion.

Also, the spell checking that Ghost uses is not at all accurate for English (UK/Australia).

Steps to Reproduce

1. Turn off spell checking

2. Edge's native spell check is supressed

3. Turn on spell checking

4. Right+Click on a word - the list of spelling options are missing

If the spelling is OFF then I think the browser spell checker should be enabled. At the moment, there is zero benefit from the Ghost spell checker over Edge.

Technical details:

• Ghost Version: 1.17.2
• Node Version: no idea, using Pro
• Browser/OS: Edge
• Database: mysql

[kevinansfield]

This is known and unfortunately the expected behaviour for the markdown editor. Spell check for rich-text will eventually land as part of the full mobiledoc editor.

Closing as a duplicate of #8566 and #8897