715077 - Firefox 9 Web Console API (ConsoleAPI) logging methods crash when encountering null in printf-like string substitution

Status: RESOLVED DUPLICATE of bug 692550

(DevTools :: Console, defect)

Description

[Mikhail Alexeev]

Attachment: console_error.png

User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/535.2 (KHTML, like Gecko) Chrome/15.0.874.120 Safari/535.2

Steps to reproduce:

Windows 7 Professional SP1 64 bit.

Firefox 9 clean new installation, new empty profile, no third party addons or plugins.

Open Web Console (Firefox -> Web Developer -> Web Console, Ctrl+Shift+K)

Tried to execute this code in the console:

console.log('test %o', null)



Actual results:

The attempt to pass null argument to the console log caused error:

TypeError: args.shift() is null

It did not crash in Firefox 8 (or earlier).


Expected results:

Such calls should not crash.
It should output something like "test null"

Its a console logging and application may have all kind of data, including nulls.

The crash happens in Mozilla Firefox/omni.jar/components/ConsoleAPI.js line 213.