A developer created a web page consisting of a video. While testing his web page in different browsers, he found that some earlier versions of browsers were not rendering the video element as expected. Which of the following actions will resolve this issue? A) Remove video tag as all users need the same experience in all browser versions. B) Add Selectivizr polyfill. C) Add MediaElement.js polyfill. D) Use Modernizr.
Answer (1)
To address the issue of a video not rendering properly in earlier versions of web browsers, the developer can consider using a polyfill.
A polyfill is a piece of code (usually JavaScript) used to provide modern functionality on older browsers that do not natively support it.
Here's a detailed explanation of the options provided:
A) Remove video tag as all users need the same experience in all browser versions.
Removing the video tag is not a practical solution, as it doesn't address the underlying problem of compatibility.
B) Add Selectivizr polyfill.
Selectivizr is a JavaScript utility used to emulate CSS3 pseudo-classes and attribute selectors in legacy Internet Explorer versions. It is not specifically for video rendering, so it’s unlikely to solve the video issue.
C) Add MediaElement.js polyfill.
MediaElement.js is a JavaScript library and polyfill that enables support for HTML5 and elements across various browsers, including older ones. This is a suitable solution because it provides a consistent HTML5 media experience by using native players or via Flash and Silverlight fallback.
D) Use Modernizr.
Modernizr is a JavaScript library that detects features and capabilities in a user’s browser. It won’t directly solve the compatibility issue of the video not displaying, but it can help in detecting whether a browser supports the element, allowing the developer to apply alternative solutions accordingly.
In summary, the best solution to make the video component work across all browsers, including older versions, is to implement option C) Add MediaElement.js polyfill. This will help ensure that the video renders correctly by providing necessary fallbacks and ensuring consistent behavior across different browser versions.
