javascript - Dropzone: prevent uploading of duplicate files -

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I am using DropZone I would like to stop uploading a file which is already in the form of thumbnails in Dropzone "panel" With the upload in present I mean that do not allow the file to be shown twice with the same name in the panel. I do not care about the case of this file which is already present in the server and is not visible in the panel because it will be replaced with the new one with the same name.

I do not want to receive this despite my efforts. I appreciate your help.

Thank you very much

Try it, I had a similar problem recently was. I am done with the help of this



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