php - Composer HTTP 400 Bad request when downloading Laravel -

i getting issue of 400 bad request connecting on http, , seems package wants installed via http. tried override in composer.json tried others workaround force https - doesn't seem work. i'm not behind firewall. mac os 10.10.3

issue :

composer diagnose checking composer.json: fail property name required property description required no license specified, recommended so. closed-source software may use "proprietary" license. checking platform settings: ok checking git settings: ok checking http connectivity packagist: fail [composer\downloader\transportexception] "http://packagist.org/packages.json" file not downloaded (http/1.1 400 bad request) checking https connectivity packagist: ok checking github.com rate limit: ok checking disk free space: ok checking composer version: ok  [composer\downloader\transportexception]      "http://packagist.org/p/provider-2013$c2596c5d04e7701561420666ba120ede9429a69c75b732a5a01b18ebb3d64e53.json" file not downloaded (http/1.1 400 bad request)     

composer.json

{ "repositories": [      { "packagist": false } ,      {          "type": "composer",           "url": "https://packagist.org"     } ] } 

composer version 1.0-dev (92faf1c7a83a73794fb914a990be435e1df373ca) 2015-07-14 12:37:15

for me quitting forticlient (antivirus/web security app) removed 400 bad request error , allowed me download laravel via composer.

maybe have antivirus software or similar interfering.

i'm on mac os x 10.11