The code defines a function named "adaInit()" that is triggered...

March 29, 2023 at 04:40 AM

function adaInit() { // Aria Issue: [user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5. let metaEl = document.querySelector('meta[name="viewport"]'); metaEl.setAttribute('content', 'width=device-width, initial-scale=1.0, maximum-scale=5.0'); } document.addEventListener("DOMContentLoaded", adaInit);

The code defines a function named "adaInit()" that is triggered when the DOMContentLoaded event fires.

The purpose of the function is to modify the viewport meta tag on the page so that it conforms to accessibility guidelines. It does this by selecting the meta tag using a CSS selector, and then setting its "content" attribute to a new value that includes "width=device-width" (which sets the width of the viewport to match the device screen), "initial-scale=1.0" (which sets the initial zoom level to 100%), and "maximum-scale=5.0" (which allows users to zoom in up to 500% of the original size).

This modification is designed to address a specific issue related to the Aria accessibility standard, which requires that web pages be scalable up to a certain level to accommodate users with visual impairments. The code ensures that the page can be scaled up to at least 500% without causing issues with the viewport or other layout elements.

Overall, this code is an example of how developers can use JavaScript to improve the accessibility of their web pages by modifying key elements like the viewport meta tag.

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