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Why is my hidden HTML form field showing up before submitted?

I was trying to send a POST using HTML and it works fine.
The only concern I have is it shows the data before submission.
And I don’t want our user to see data showing on their browser, even if it’s only one second.
What do you think I should do to avoid this?

<form name="form1" id="form1" action="{{ $endpoint }}" method="post">
  <input type="hidden" name="data" value="{{ $data }}">
</form>
<script>
  document.getElementById('form1').submit();
</script>

I add a type="hidden", but it doesn’t help.

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2

Answers


  1. 0

    You can add the data to the session instead of sending a form:

        <?php
    session_start();
    $_SESSION['data']=$data;
    ?>

    Then use

        if(isset($_SESSION['data']))
    {
    $data=$_SESSION['data'];
    echo"$data";
    }

    This would require you to rename the file to .php extension, however your application will work server-side and users will not be able to see the data you are transfering.

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  2. 0

    Appends form-data into the URL in name/value pairs
    The length of a URL is limited (about 3000 characters)
    Never use GET to send sensitive data! (will be visible in the URL)
    Useful for form submissions where a user wants to bookmark the result
    GET is better for non-secure data, like query strings in Google
    Notes on POST:

    Appends form-data inside the body of the HTTP request (data is not shown in URL)
    Has no size limitations
    Form submissions with POST cannot be bookmarked

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