javascript - Page jumping when filling form in iframe on iOS devices -


i have problem ios browsers

this starter conditions:
- have simple html page , contains iframe
- iframe contains simple html page form
- iframe haven't scroll , sizes fixed

bug: now, if open page on iphone(from chrome/safari browser) , start fill form, in moment when text printing, page scroll down itself

this example link

<div id="container">    <iframe src="https://www.w3schools.com/php/demo_form_validation_complete.php" frameborder="0"></iframe>  </div>

why happening? how prevent these automatic "jumps" of page?


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