src/Selenium/Downloader.php
public function getFileUrl(): string
    {
        $version = $this->getVersion();
        Assert::that($version, 'Invalid version (expected format is X.Y.Z)')
            ->notEmpty()
            ->regex('/^\d+\.\d+\.[\da-z\-]+$/i');

        $versionParts = explode('.', $version);

        $devVersion = '';
        if (preg_match('/(\d+)-([[:alnum:]]+)/', $versionParts[2], $matches)) {
            $devVersion = $matches[2];
        }

        $fileUrl = self::$storageUrl . '/' . $versionParts[0] . '.' . $versionParts[1]
            . (!empty($devVersion) ? '-' . $devVersion : '')
            . '/' . $this->getFileName();

        return $fileUrl;
    }
public function getFileUrl(): string
    {
        $version = $this->getVersion();
        Assert::that($version, 'Invalid version (expected format is X.Y.Z)')
            ->notEmpty()
            ->regex('/^\d+\.\d+\.[\da-z\-]+$/i');

        $versionParts = explode('.', $version);

        $devVersion = '';
        if (preg_match('/(\d+)-([[:alnum:]]+)/', $versionParts[2], $matches)) {
            $devVersion = $matches[2];
        }

        $fileUrl = self::$storageUrl . '/' . $versionParts[0] . '.' . $versionParts[1]
            . (!empty($devVersion) ? '-' . $devVersion : '')
            . '/' . $this->getFileName();

        return $fileUrl;
    }
Get complete URL of the file to download