Print and Preview don't work on Firefox when using editor from CDN #4444
Description
Type of report
Bug
Provide detailed reproduction steps (if any)
- Open https://ckeditor.com/docs/ckeditor4/latest/examples/fullpreset.html
- Press Print or Preview button
Expected result
What is the expected result of the above steps?
Preview should open in a window normally.
What is the actual result of the above steps?
Blank window opens.
Error is thrown in the console: Permission denied to access property "_cke_htmlToLoad" on cross-origin object
Other details
- Browser: Firefox
- OS: Any
- CKEditor version: 4.0+
- Installed CKEditor plugins: Preview, Print
I have tried setting Header set Access-Control-Allow-Origin "*" but it didn't work. This could be Firefox issue:
https://bugzilla.mozilla.org/show_bug.cgi?id=911444
mozilla/pdf.js#5397