Custom copy seems to have no "plain text"

[fredck]

I wanted to check the HTML that the online demo puts in the clipboard with the new Custom Copy support introduced with ckeditor/ckeditor5-clipboard#7. For that purpose, I did the following:

1. CMD+A to select all.
2. CMD+C to copy.
3. Opened a text-only editor (Sublime or Notepad) and CMD+V to paste in an empty file.

Issue: Nothing has been pasted.

Then, I tried pasting in rich-text applications, like Word or CKEditor 4, and I see that it works like a charm. This showed me that nothing goes to clipboard only for plain-text on copy.

After a bit of thinking, I started understanding what should be the right expectations. I was wrong to expect that the HTML would be pasted. The right behavior instead, would be having a plain text version of the copied text being pasted.

[Reinmar]

I forgot about that. We need to put plain text into the clipboard. So we'll need to develop a "textify" converter.