Why doesn't ie9 support w3c standard?

The reasons why ie9 does not support w3c standards include release time and technical progress, compatibility and backward compatibility, market share and competitive pressure, technical implementation and resource limitations, etc. Detailed introduction: 1. Release time and technology progress. IE9 was released in 2011. At that time, the development and update of W3C standards were relatively fast. Since the formulation and promotion of standards take time, IE9 may not be able to fully support the latest W3C when it is released. Standards, as time goes by, W3C standards continue to evolve and improve. After a new standard version is released, browser manufacturers need to update it, etc.

The operating system for this tutorial: Windows 10 system, DELL G3 computer.

IE9 is the ninth major version of the Internet Explorer browser launched by Microsoft. Although IE9 has improved and supported W3C standards in some aspects, it still has some reasons for not fully supporting or supporting W3C standards, including the following points:

1. Release time and technical progress: IE9 was released in 2011, when W3C standards were developing and updating relatively quickly. Since the development and promotion of standards takes time, IE9 may not fully support the latest W3C standards when released. Over time, W3C standards continue to evolve and improve. After a new standard version is released, browser manufacturers need to make corresponding updates and adaptations.

2. Compatibility and backward compatibility: One of the design goals of IE9 is to provide better backward compatibility to ensure that existing web pages and applications can still work properly in the new version. To maintain backward compatibility, IE9 may have modified or partial support for some W3C standards to meet the needs of past web pages and applications. This may result in IE9 not fully complying with the latest W3C standards in some aspects.

3. Market share and competitive pressure: When IE9 was released, the market share of IE browser was still very high, but it gradually lost its advantage under the pressure of modern browsers such as competitors such as Firefox and Chrome. . In order to maintain market share and competitiveness, IE9 may focus more on backward compatibility and user experience rather than pursuing full compliance with W3C standards.

4. Technical implementation and resource limitations: The technical implementation and development resources of IE9 may be subject to some restrictions. Developing and maintaining a browser requires a lot of resources and manpower investment, including R&D teams, testing teams, and technical support teams. With limited resources, browser manufacturers may not be able to immediately follow up and implement the latest W3C standards, but instead make selections and adjustments based on market needs and technical priorities.

Although IE9 does not fully support W3C standards in some aspects, it should be noted that IE9 was still a more advanced browser at the time of its release, bringing many improvements and new features, such as better performance, enhanced security, and a better user experience. In addition, the release of IE9 also promoted competition and development in the browser market, prompting other browser manufacturers to pay more attention to and support W3C standards.

As time goes by, Microsoft has gradually improved its support for W3C standards in subsequent IE versions, and strives to make its browser more consistent with the latest Web standards. However, because IE9 is outdated, Microsoft stopped supporting IE9 in 2016 and encourages users to upgrade to more modern browser versions for better performance, security, and compatibility.

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