1372574 - JSON viewer in Developer edition 54.0b14 (32 and 64 bits)

Status: RESOLVED DUPLICATE of bug 1224071

(DevTools :: JSON Viewer, defect)

Description

[Mathieu Martel]

User Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:54.0) Gecko/20100101 Firefox/54.0
Build ID: 20170605125726

Steps to reproduce:

I loaded a URL that produces JSON outputs (our API). All works well in 54.0a2  (2017-05-10) or older and also in other browsers.


Actual results:

When I updated to 54.0b14, the same JSON output now has multiple issues, random error on each load. Sometimes I get "SyntaxError: JSON.parse: expected ':' after property name in object at line 1 column 17315 of the JSON data", then a reload I will get something like "SyntaxError: JSON.parse: bad Unicode escape at line 1 column 69816 of the JSON data", then "SyntaxError: JSON.parse: unexpected character at line 1 column 20232 of the JSON data". This only happens in the JSON viewer. The JSON Result in the Network Debugger tab is fine. There is not encoding issues or missing characters what so ever in my results.

Sometimes I get a JSON formatted output, but keys are replaced with parts of values and values not well formatted. For instance {"company_survey":[{"name":"John Doe"}]} sometimes will display {"compaohn": Doe"}]}

Like I said, in the Network Debugging tab, the result is fine and in other browsers it is also fine.


Expected results:

The expected result would be exactly what I had in 54.0a2  (2017-05-10) or older, which is a normal JSON output.

Comment 1

[Oriol Brufau [:Oriol]]

This seems a duplicate of bug 1224071, fixed by bug 1367894.

However, that already existed much before Firefox 54.

Can you check if it is fixed on latest nightly?

Otherwise, the JSON file and a mozregression bisection would be helpful.

Comment 2

[Mathieu Martel]

Well I never got that problem, as mentioned, in the previous build and older builds. I only got this when I did the update some short time ago. It is not a JSON file, it's JSON output from a PHP script.

The 55.0b1 build seems to be ok! Thanks.

Comment 3

[Oriol Brufau [:Oriol]]

OK, closing this, then.