Error: the server sent us a response (JSON) which we did not understand

If you open your web browser’s developer console, and then attempt the upload, it’ll show you the response to the request. What does it show there?

Hi This is what I see;

Object admin.js?ver=1:92
TypeError: Cannot read property ‘e’ of null
at g.Uploader.<anonymous> (admin.js?ver=1:83)
at g.Uploader.dispatchEvent (load-scripts.php?c=1&load[]=jquery-core,jquery-migrate,utils,moxiejs,plupload&ver=4.9.9:14)
at g.Uploader.trigger (load-scripts.php?c=1&load[]=jquery-core,jquery-migrate,utils,moxiejs,plupload&ver=4.9.9:11)
at n.c.status.g.UPLOADING.a.state.g.STOPPED.B.onload (load-scripts.php?c=1&load[]=jquery-core,jquery-migrate,utils,moxiejs,plupload&ver=4.9.9:14)
at n.<anonymous> (load-scripts.php?c=1&load[]=jquery-core,jquery-migrate,utils,moxiejs,plupload&ver=4.9.9:11)
at Array.<anonymous> (load-scripts.php?c=1&load[]=jquery-core,jquery-migrate,utils,moxiejs,plupload&ver=4.9.9:11)
at d (load-scripts.php?c=1&load[]=jquery-core,jquery-migrate,utils,moxiejs,plupload&ver=4.9.9:11)
at Object.e [as inSeries] (load-scripts.php?c=1&load[]=jquery-core,jquery-migrate,utils,moxiejs,plupload&ver=4.9.9:11)
at n.dispatchEvent (load-scripts.php?c=1&load[]=jquery-core,jquery-migrate,utils,moxiejs,plupload&ver=4.9.9:11)
at d.<anonymous> (load-scripts.php?c=1&load[]=jquery-core,jquery-migrate,utils,moxiejs,plupload&ver=4.9.9:12)
admin.js?ver=1:93 {response: null, status: 200, responseHeaders: “access-control-allow-credentials: true
?access-con…wered-by-plesk: PleskWin
?x-robots-tag: noindex
?”}

That part isn’t unhelpful, but it’s not the response itself. We’re looking for the browser’s record of the HTTP request that was sent, and its response, like in this screenshot: https://snipboard.io/tRXHlb.jpg

Hi
Cant see anything like that – I’m using edge btw. The only other thing I can see if I switch verbose on is;
[Violation] ‘load’ handler took 72331ms

I don’t know Edge. My browser is Firefox. I believe that in Chrome – which Edge is based on – you need to right-click in the console and turn on an option to monitor XHR requests? Or possibly use the “Network” tab to see them. Or both.

so tried in chrome and I can see this:

response: null
responseHeaders: “access-control-allow-credentials: true
access-control-allow-origin: https://theteaonthegreen.co.uk
cache-control: no-cache, must-revalidate, max-age=0
content-length: 0
content-type: text/html; charset=UTF-8
date: Wed, 09 Sep 2020 10:56:37 GMT
expires: Wed, 11 Jan 1984 05:00:00 GMT
referrer-policy: strict-origin-when-cross-origin
server: Microsoft-IIS/8.5
x-content-type-options: nosniff
x-frame-options: SAMEORIGIN
x-powered-by: ASP.NET
x-powered-by-plesk: PleskWin
x-robots-tag: noindex
”
status: 200
proto__:
constructor: ? Object()
hasOwnProperty: ? hasOwnProperty()
isPrototypeOf: ? isPrototypeOf()
propertyIsEnumerable: ? propertyIsEnumerable()
toLocaleString: ? toLocaleString()
toString: ? toString()
valueOf: ? valueOf()
__defineGetter__: ? __defineGetter__()
__defineSetter__: ? __defineSetter__()
__lookupGetter__: ? __lookupGetter__()
__lookupSetter__: ? __lookupSetter__()
get __proto__: ? __proto__()
set __proto__: ? __proto__()

What was the URL requested that that is the response to?

sorry, cant see anything but the web url thats on the third line

Can you post a screenshot of the “Network” tab immediately after trying the upload?