 This popularity is apparently due to webmasters or their employers wanting fine-grained control over the presentation and behavior of the solicitation for user credentials, while the default pop-up dialog boxes (for HTTP basic access authentication or digest access authentication) that many web browsers provide do not allow precise tailoring.The desired precision may be motivated by corporate requirements (like branding) or implementation issues (e.g., the default configuration of web applications like MediaWiki, phpBB, Drupal, WordPress).Regardless of rationale, any corporate branding or user-experience adjustments must not distract from several security considerations of this authentication process.