Dropzone js : Techical issue, Deleted file not working in mozila firefox

[chiragprajapati-ace]

I am using dropzone js for development. There is specific Firefox browser issue. Kindly follow the below steps to reproduce the issue.

For your kind information, we are not directly uploading file(s) instead, we select file(s) and use the upload button to upload to the server.

Steps to reproduce

1. Select the file(s) from the dropzone area.
2. Those file(s) were stored in memory until we clicked the submit button, then we physically removed them from our system.
3. After that, I submit the form, and we are not getting the "Server responded with 0 code" error message from dropzone. Because generally, dropzone give the same error in the "error" function, which is how we handle errors.
4. For your information, this issue works perfectly fine in Google Chrome, but in Mozilla Firefox, it is taking atleast 4-5 min exactly for response "Server responded with 0 code".

We tried using many ways, like comma missing, code after return statement and so on but unfortunately didn't get any solutions.

Let us know if we failed to explain the issue. Looking for your reply.

Regards,
Chirag