Feedback for completed upload

[benel]

For now, a JSON message is shown instead of the updated form.

Workaround: Get the URL again.

[gignonje]

Bug Reproduction Scenario:

• Click the add button (+) on the bottom of the page
• Click browse on the page that open and choose the file you want to upload, then click "Déposer"
• You will now see the Json feedback

[ghost]

Bug Reproduction Scenario: As described by jeremygignon.

This issue can be solved very simply by bypassing the submission of the form to bring the user immediately to the updated form.
However, an improved solution using the existing JSON would be to remove the "submit" value of the button. Instead of posting the form, the information needs to be processed separately (e.g. using AJAX) and when the form is updated or in an error state, feedback can be displayed onscreen dynamically without reloading the page using Javascript.

[yipenghuang]

Bug Reproduction Scenario:
1- click the button on de bottom of the page with de symbol "+".
2-
2.1- click the button "Parcourir", choose a file named by UTF-8 characters in the dialog box and then click open.
2.2- click the button "Parcourir", choose a file named by not-UTF-8 characters in the dialog box and then click open.
3-
3.1- JSON feedback with the succes of the upload
msg: {"ok":true,"id":"a5f7207630b482e5e3020dd99531989e","rev":"2-2f7f716af6dc956c397c589d38b1d760"}
url: http://tire-a-part.test.hypertopic.org/a5f7207630b482e5e3020dd99531989e
3.2- JSON feedback with the error of the upload
msg: {"error":"bad_request","reason":"Attachment name is not UTF-8 encoded"}
url: http://tire-a-part.test.hypertopic.org/a5f7207630b482e5e3020dd995320d1f

*with these msgs shown, we can not return to the edit page of article unless we click the button "return" of the web browser

[benel]

File uploads could be done in the background by using a library like jQuery File Upload.