1370060 - JSON built-in viewer alters data

Status: RESOLVED DUPLICATE of bug 1224071

(DevTools :: JSON Viewer, defect)

Description

[Francesco Pozzi]

User Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:53.0) Gecko/20100101 Firefox/53.0
Build ID: 20170518000419

Steps to reproduce:

Was testing my own web service with Firefox 53.0.3, getting fairly large JSON responses (~100kb).
Sorry, I can't make the service publicly available, but you just need to know that it returns a quite simple array of ~1000 elements.


Actual results:

MOST of the times the built-in JSON view is detecting an error in the resulting JSON at some random position (it changes every time I hit refresh). The response from the server, however, is supposed to be correct and exactly the same each time and in fact, by capturing TCP datagrams, I discovered that the retrieved data was fine, the missing/misplaced characters were just displayed in Firefox. These errors seem to occur inbetween two TCP datagrams.

Interestingly enough, the problem disappeared when I enabled http compression from the server.

JSONView extension didn't seem to have the same problem.


Expected results:

Retrieved JSON is correct and should be parsed by the built-in viewer just fine.

Comment 1

[Francesco Pozzi]

Forgot to mention that this doesn't happen when I test the same web service on localhost

Comment 2

[Oriol Brufau [:Oriol]]

This seems a duplicate of bug 1224071 and should have been fixed by bug 1367894.