Basic formatting of a content of <pre> tag stripped by ACF is not preserved

[Andrey Vaskovskiy]

Whenever I paste text with LINUX line breaks from clipboard into CKEDITOR with a toolbar that contains a 'Fotmat' button the text is processed correctly with line breaks, but if there's no 'Fotmat' button in toolbar - then the text is inserted in a single line.

Is it possible to configure CKEDITOR to process the text correctly in both cases without adding 'Fotmat' button in toolbar. (See attached files)

Reproducible in Version 4, and on CKEDTIOR demo page

​http://ckeditor.com/demo#standard - correct insert ​http://ckeditor.com/demo#widgets - inserted as single line

Edit:
In this case this so called text copied from browsers is in fact html where top tag is <pre> tag.
Because no pre is reported to ACF, filter removes pre tags but that is all it does.
ACF doesn't do anything to convert new line characters to e.g. <br /> or <p> .

[Andrey Vaskovskiy]

Just download error_output attachmment and paste text into CKEDITOR demo samples to reproduce: ​http://ckeditor.com/demo#standard - correct insert ​http://ckeditor.com/demo#widgets - inserted as single line

[Piotrek Koszuliński]

I cannot reproduce it with your file neither on FF nor on Chrome. Checked with gedit and sublime on Ubuntu 12.04.

Which browser did you test?

[Andrey Vaskovskiy]

It is reproducible with both FF and Chrome on Windows. See attached video.

[Piotrek Koszuliński]

I see that you copied the content from browser, not from text editor. Browser renders a <pre> tag internally when opening a file. You can inspect that with dev tools.

So, when you copy text directly from browser, it's not a plain text - it's a <pre> tag with some content. But the editor without a format combo does not support <pre> tag, so it's stripped and text is not preformatted any more.

This can be considered a bug, but it's very specific and rare (copying text file from browser + lack of format combo), so it's unlikely that we'll work on this soon.

[Andrey Vaskovskiy]

Thanks, but in version 3.6.4 pasting always worked fine despite buttons in toolbar

[Piotrek Koszuliński]

Yes, because ACF was introduced in CKEditor 4.1. If you switch ACF off you'll have pretty much the same result.

[Andrey Vaskovskiy]

Thank you Reinmar, as I understand the ACF can be turned off only by setting CKEDITOR.config.allowedContent to 'true', and it will affect all the editors on page. Can it be changed per editor instance ?

[Piotrek Koszuliński]

Sure it can be. Read about setting configuration: ​http://docs.ckeditor.com/#!/guide/dev_configuration