Ignore Images in Pasted Content
Note: this chapter doesn't apply to IE 11.
The content copied from the website or office may contain images in addition to the text. These pisctures from external domains generally may not be displayed due to anti-leech processing.
pasteIgnoreImg can ingore images in the pasted text:
editor.config.pasteIgnoreImg = false
If that, the image will not be pasted if included in the copied in the text.