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The function wp_get_attachment_image_srcset() delivers the srcset information of an image.

Is it possible to write a seperat function to add an additional extension (.webp)?

Output of the function wp_get_attachment_image_srcset():

"https://www.url.de/wp-content/uploads/teaser-768x512.jpg 768w, https://www.url.de/wp-content/uploads/teaser-500x333.jpg 500w"

Output of the new function with ".webp" extension:

"https://www.url.de/wp-content/uploads/teaser-768x512.jpg.webp 768w, https://www.url.de/wp-content/uploads/teaser-500x333.jpg.webp 500w"

Thank you for your help!

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