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webp-hero

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webp image format polyfill for browsers

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/** * detect whether or not the browser allows reading from a canvas * - some browsers, as an anti-fingerprinting security measure, * disallow reading data from a canvas. * - if canvas reading isn't allowed, to polyfill images, * we have to display the actual canvases instead of reading out * their data to inject as <img> elements. */ export declare function detectCanvasReadingSupport(): boolean;