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Browser crashes when we try to copy/paste data from spreadsheet #449

@f1ames

Description

@f1ames

Are you reporting a feature or a bug?

Bug

Provide detailed reproduction steps (if any)

Use ie_data.zip

  1. Open document.
  2. Copy its content.
  3. Paste into editor.

Expected result

Content is pasted properly without freezing a browser or throwing errors.

Actual result

  • Chrome / Firefox: takes substantial amount of time to process the whole paste.
  • IE11 / Edge: browser crashes.

Other details

  • CKEditor version: 4.7.0

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    plugin:pastefromwordThe plugin which probably causes the issue.status:confirmedAn issue confirmed by the development team.supportAn issue reported by a commercially licensed client.type:bugA bug.

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