Impossible to complete installation from fresh install

[emulienfou]

Step to reproduce

Simply create a new project by running:

composer create-project harmony/skeleton:dev-master project

Error message

Occur only the 1st time

Reading /root/.composer/auth.json
Retrying download: <url> malformed
Downloading https://api.harmonycms.net/packages.json
Retrying download: 
Reading /root/.composer/auth.json
Retrying download: <url> malformed
Downloading https://api.harmonycms.net/packages.json
Retrying download: 
Reading /root/.composer/auth.json
Retrying download: <url> malformed
Downloading https://api.harmonycms.net/packages.json
Retrying download:

[Composer\Downloader\TransportException]                    
  The '' URL could not be accessed: HTTP/1.1 400 Bad Request 

Expected

No error message

Exception trace

 () at phar:///usr/local/bin/composer/src/Composer/Util/RemoteFilesystem.php:618
 Composer\Util\RemoteFilesystem->callbackGet() at /usr/src/harmony/project/vendor/harmony/flex/src/ParallelDownloader.php:282
 Harmony\Flex\ParallelDownloader->callbackGet() at n/a:n/a
 file_get_contents() at phar:///usr/local/bin/composer/src/Composer/Util/RemoteFilesystem.php:586
 Composer\Util\RemoteFilesystem->getRemoteContents() at /usr/src/harmony/project/vendor/harmony/flex/src/ParallelDownloader.php:928
 Harmony\Flex\ParallelDownloader->getRemoteContents() at /usr/src/harmony/project/vendor/harmony/flex/src/ParallelDownloader.php:467
 Harmony\Flex\ParallelDownloader->get() at /usr/src/harmony/project/vendor/harmony/flex/src/ParallelDownloader.php:240
 Harmony\Flex\ParallelDownloader->copy() at /usr/src/harmony/project/vendor/harmony/flex/src/ParallelDownloader.php:259
 Harmony\Flex\ParallelDownloader->getContents() at phar:///usr/local/bin/composer/src/Composer/Repository/ComposerRepository.php:682
 Composer\Repository\ComposerRepository->fetchFile() at /usr/src/harmony/project/vendor/harmony/flex/src/Repository/TruncatedComposerRepository.php:66
 Harmony\Flex\Repository\TruncatedComposerRepository->fetchFile() at phar:///usr/local/bin/composer/src/Composer/Repository/ComposerRepository.php:497
 Composer\Repository\ComposerRepository->loadRootServerFile() at phar:///usr/local/bin/composer/src/Composer/Repository/ComposerRepository.php:276
 Composer\Repository\ComposerRepository->hasProviders() at phar:///usr/local/bin/composer/src/Composer/Repository/ComposerRepository.php:127
 Composer\Repository\ComposerRepository->findPackage() at phar:///usr/local/bin/composer/src/Composer/Repository/RepositoryManager.php:58
 Composer\Repository\RepositoryManager->findPackage() at /usr/src/harmony/project/vendor/harmony/flex/src/Platform/Handler/Project.php:223
 Harmony\Flex\Platform\Handler\Project->installPackages() at /usr/src/harmony/project/vendor/harmony/flex/src/Flex.php:565
 Harmony\Flex\Flex->harmonyProjectInitialize() at n/a:n/a
 call_user_func() at phar:///usr/local/bin/composer/src/Composer/EventDispatcher/EventDispatcher.php:176
 Composer\EventDispatcher\EventDispatcher->doDispatch() at phar:///usr/local/bin/composer/src/Composer/EventDispatcher/EventDispatcher.php:96
 Composer\EventDispatcher\EventDispatcher->dispatchScript() at phar:///usr/local/bin/composer/src/Composer/Installer.php:323
 Composer\Installer->run() at phar:///usr/local/bin/composer/src/Composer/Command/CreateProjectCommand.php:192
 Composer\Command\CreateProjectCommand->installProject() at phar:///usr/local/bin/composer/src/Composer/Command/CreateProjectCommand.php:144
 Composer\Command\CreateProjectCommand->execute() at phar:///usr/local/bin/composer/vendor/symfony/console/Command/Command.php:241
 Symfony\Component\Console\Command\Command->run() at phar:///usr/local/bin/composer/vendor/symfony/console/Application.php:843
 Symfony\Component\Console\Application->doRunCommand() at phar:///usr/local/bin/composer/vendor/symfony/console/Application.php:193
 Symfony\Component\Console\Application->doRun() at phar:///usr/local/bin/composer/src/Composer/Console/Application.php:254
 Composer\Console\Application->doRun() at phar:///usr/local/bin/composer/vendor/symfony/console/Application.php:117
 Symfony\Component\Console\Application->run() at phar:///usr/local/bin/composer/src/Composer/Console/Application.php:103
 Composer\Console\Application->run() at phar:///usr/local/bin/composer/bin/composer:56
 require() at /usr/local/bin/composer:25