Image pasted twice when copy from browsers

[easygolabs]

Type of report

Bug

Provide detailed reproduction steps (if any)

The investigation of the browsers behavior showed that the different browsers insert images in different ways. The picture was inserted twice or once (randomly) : it is not clear why the one picture was inserted once and the other twice. So, solved the problem for one browser, can be created to another. Any ideas how it should be solved based on the investigation on the screenshot?

1 - if comment the line d.insertElement(b) in ckeditor/ckeditor.js -> function h(a, d)
2 - without changes

Expected result

It should be pasted just once.

Actual result

Pasted twice

Other details

• Browser: Chrome Firefox Edge Explorer
• OS: Windows 10 Pro 20H2 19042.1266
• CKEditor version: 4.14.1
• Installed CKEditor plugins: a11yhelp, about, autocomplete, autolink, base64image, ckwebspeech, clipboard, colordialog, dialog, div, fakeobjects, find, flash, forms, iframe, image, insertimage, link, lifestyle, magicline, pagebreak, pastebase64, pastefromword, pastetools, preview, scayt, setstyle, showblocks, smiley, specialchar, table, tabletools, templates, textmatch, wsc

[Comandeer]

It could be caused by #4874. Could you disable all custom plugins for inserting/pasting images (base64image, pastebase64 and insertimage) to the editor and check if issue's still present?

Issue can be also caused by the fact that you use more than one plugin to handle image pasting.

[easygolabs]

It could be caused by #4874. Could you disable all custom plugins for inserting/pasting images (base64image, pastebase64 and insertimage) to the editor and check if issue's still present?

Issue can be also caused by the fact that you use more than one plugin to handle image pasting.

I will try and then will write about the result

[easygolabs]

It could be caused by #4874. Could you disable all custom plugins for inserting/pasting images (base64image, pastebase64 and insertimage) to the editor and check if issue's still present?

Issue can be also caused by the fact that you use more than one plugin to handle image pasting.

If disable pastebase64 the issue is not present, but i can't copy from the clipboard. If make the same changes as in #4896, then in which file should I paste this code?:

CKEDITOR.replace( 'editor', {
	// Allow 3rd party plugins to handle image pasting
	clipboard_handleImagePasting: false,
	extraPlugins: "customImagePasteHandlerPlugin"
} );

[Comandeer]

You can download the nightly version to check if the issue is resolved.

From the code you mentioned above you need only clipboard_handleImagePasting option and it should be added to your code for initializing the editor. It will disable built-in image pasting and then pastebase64 plugin should work normally, pasting only one image.

[easygolabs]

I have downloaded the nightly version (4.17.0 Standard package) and it had been pasting once before i have extracted the downloaded plugin pastebase64 into the plugins folder and have added config.extraPlugins = 'pastebase64'; into the ckeditor\config.js file. After that, still pasted twice.

[Comandeer]

Have you added config.clibpoard_handleImagePasting = false; to your config?

[easygolabs]

Have you added config.clibpoard_handleImagePasting = false; to your config?

Yes, it works, thanks, very helpful

[Comandeer]

Ok, so I'm closing it as a duplicate of #4874.

Please note that the fix will be officially released in 4.17.0, the nightly version is still experimental.

[easygolabs]

@Comandeer, hi, i have downloaded the 4.17.1 version and added config.clipboard_handleImages = false; to config.js. Reloaded the page and opened the /ckeditor/samples/ for test and the image is pasting twice. Do I missing something? It had worked for the nightly version. (what has been mentioned in the previous discussion)

[Comandeer]

Could you provide some demo of the issue?

[easygolabs]

Could you provide some demo of the issue?

Of course, you can view at this link: https://drive.google.com/file/d/1eFJhPFD2TLHIVxQAAt2egeZ3gIGTtb4c/view

The custom build archive is available at: https://ckeditor.com/cke4/builder/download/47dd77c081dd00b601b21dbc4acf395e

[Comandeer]

@easygolabs, sorry for the delayed response. After quick debugging it seems that the issue is connected with pastebase64 plugin. After removing it, the image was pasted correctly.

[easygolabs]

@Comandeer right, is this issue could be confirmed and there will be one more fix? Or the reason of this is incorrect use of plugins and it needs to avoid using pastebase64 plugin with the similar.

[Comandeer]

It's an issue with a third-party plugin, pastebase64. Without it setting config.handleImages to false seems to work correctly.