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  2. Sandbox (computer security) - Wikipedia

    en.wikipedia.org/wiki/Sandbox_(computer_security)

    In computer security, a sandbox is a security mechanism for separating running programs, usually in an effort to mitigate system failures and/or software vulnerabilities from spreading. The sandbox metaphor derives from the concept of a child's sandbox—a play area where children can build, destroy, and experiment without causing any real ...

  3. Content Security Policy - Wikipedia

    en.wikipedia.org/wiki/Content_Security_Policy

    Mapping between HTML5 and JavaScript features and Content Security Policy controls. If the Content-Security-Policy header is present in the server response, a compliant client enforces the declarative allowlist policy. One example goal of a policy is a stricter execution mode for JavaScript in order to prevent certain cross-site scripting attacks.

  4. Sandbox (software development) - Wikipedia

    en.wikipedia.org/wiki/Sandbox_(software_development)

    The term sandbox is commonly used for the development of web services to refer to a mirrored production environment for use by external developers. Typically, a third-party developer will develop and create an application that will use a web service from the sandbox, which is used to allow a third-party team to validate their code before migrating it to the production environment.

  5. HTML5 - Wikipedia

    en.wikipedia.org/wiki/HTML5

    HTML5 is designed so that old browsers can safely ignore new HTML5 constructs. [8] In contrast to HTML 4.01, the HTML5 specification gives detailed rules for lexing and parsing, with the intent that compliant browsers will produce the same results when parsing incorrect syntax. [126]

  6. Wikipedia:Sandbox - Wikipedia

    en.wikipedia.org/wiki/Wikipedia:Sandbox

    Welcome to this sandbox page, a space to experiment with editing. You can either edit the source code ("Edit source" tab above) or use VisualEditor ("Edit" tab above). Click the "Publish changes" button when finished. You can click "Show preview" to see a preview of your edits, or "Show changes" to see what you have changed.

  7. Wikipedia:About the sandbox - Wikipedia

    en.wikipedia.org/wiki/Wikipedia:About_the_Sandbox

    Image of the sandbox in the Wikipedia namespace showing the page title and sandbox header. Sandboxes, such as a user's sandbox or the more frequently edited Wikipedia:Sandbox, are pages designed for testing and experimenting with wiki syntax and the VisualEditor. They were created as a place with fewer rules and policies than other pages on ...

  8. Internet Explorer 10 - Wikipedia

    en.wikipedia.org/wiki/Internet_Explorer_10

    Support for Positioned Floats, CSS stylesheet limit lifted, CSSOM Floating Point Value support, Improved hit testing APIs, Media Query Listeners, HTML5: Support for async attribute on script elements, HTML5 Drag and Drop, HTML5 File API, HTML5 Sandbox, HTML5 Web Workers, and some Web Performance APIs. Internet Explorer 10 Developer Preview

  9. W3C Markup Validation Service - Wikipedia

    en.wikipedia.org/wiki/W3C_Markup_Validation_Service

    The Markup Validation Service is a validator by the World Wide Web Consortium (W3C) that allows Internet users to check pre-HTML5 HTML and XHTML documents for well-formed markup against a document type definition (DTD). Markup validation is an important step towards ensuring the technical quality of web pages.