"Selection deleted" appears on print media

[fonsp]

Describe the issue

We got a report that the text "Selection deleted" from the announceDOM element can appear on a printed PDF of a document with lots of codemirrors.

Original report: fonsp/Pluto.jl#2704 (unfortunately I don't have a PDF document that demonstrates it and I can't reproduce it)

I made a related PR: codemirror/view#43, but apparently something is different in the PDF. Perhaps a class can be added (announceDOM) to let us exclude it in @media(print), or we could add something like user-select: none; color: transparent; pointer-event: none; to the style.

Browser and platform

https://github.com/JuliaPluto/codemirror-pluto-setup/blob/main/package.json

Reproduction link

No response

[marijnh]

I'd be interested to at least know the browser/tool they used to print. The live element is positioned way off the screen, so unless you're doing something like a layout-less printing of innerText, it's weird that it would show up.

[fonsp]

A PDF example and some browser info at fonsp/Pluto.jl#2704 . AFAIK the text is never visible without printing. Hope this helps!

[marijnh]

Odd, it does look positioned, but in a place that doesn't match the style. Attached patch adds the @media rule.