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Resize an iframe to fit its content

Written byPhuoc Nguyen
Level 1 — Basic
21 Feb, 2020
Last updated
07 May, 2021
Assume that `frame` represents the iframe element.
frame.addEventListener('load', function () {
// Get the height of the content
const height = frame.contentDocument.body.scrollHeight;

// Set the height of iframe
frame.setAttribute('height', `${height}px`);

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