Not able to set cookie using django set_cookie

I am trying to set cookie using django set_cookie.
I am converting dict to string and then setting it in a cookie named 'blah'.
The cookie gets set, but I see that the commas are replaced with \054.

Python code

        x = {
            "key1": "value1",
            "key2": "value2",
            "key3": "value3",
        }
        response.set_cookie('blah', json.dumps(x)) 
        return response

How I see it in chrome:

"{\"key1\": \"value1\"4 \"key2\": \"value2\"4 \"key3\": \"value3\"}"

Any pointer what am I missing - please suggest.

django==4.2

> Any pointer what am I missing - please suggest.

Nothing. Indeed, this is exactly the same as a comma. Indeed, '\054' == ',':

> '4' == ','
true

It is just how it shows a string, but the content is exactly the same. Indeed, if we thus would parse the JSON blob, we get:

> JSON.parse("{\"key1\": \"value1\"4 \"key2\": \"value2\"4 \"key3\": \"value3\"}");
{ key1: 'value1', key2: 'value2', key3: 'value3' }

So it parses it to the right JavaScript object. You can compare it to a string literal with 'foo' and "foo", both are presentations of the same value, just like '\40' and ' ' are the same as well.