You can redirect user after successful submission, however it can only be done if you are submitting values to a secure URL (like https://www.example.com).
HTML With AMP-Form
<!doctype html>
<html amp lang="en">
<head>
<meta charset="utf-8">
<script async src="https://cdn.ampproject.org/v0.js"></script>
<title>Hello, AMPs</title>
<link rel="canonical" href="http://example.ampproject.org/article-metadata.html" />
<meta name="viewport" content="width=device-width,minimum-scale=1,initial-scale=1">
<script type="application/ld+json">
{
"@context": "http://schema.org",
"@type": "NewsArticle",
"headline": "Open-source framework for publishing content",
"datePublished": "2015-10-07T12:02:41Z",
"image": [
"logo.jpg"
]
}
</script>
<style amp-boilerplate>body{-webkit-animation:-amp-start 8s steps(1,end) 0s 1 normal both;-moz-animation:-amp-start 8s steps(1,end) 0s 1 normal both;-ms-animation:-amp-start 8s steps(1,end) 0s 1 normal both;animation:-amp-start 8s steps(1,end) 0s 1 normal both}@-webkit-keyframes -amp-start{from{visibility:hidden}to{visibility:visible}}@-moz-keyframes -amp-start{from{visibility:hidden}to{visibility:visible}}@-ms-keyframes -amp-start{from{visibility:hidden}to{visibility:visible}}@-o-keyframes -amp-start{from{visibility:hidden}to{visibility:visible}}@keyframes -amp-start{from{visibility:hidden}to{visibility:visible}}</style><noscript><style amp-boilerplate>body{-webkit-animation:none;-moz-animation:none;-ms-animation:none;animation:none}</style></noscript>
<script async custom-element="amp-form" src="https://cdn.ampproject.org/v0/amp-form-0.1.js"></script>
</head>
<body>
<h1>Hello World!</h1>
<form target="_top" action-xhr="https://test.php" method="post" name="test">
<input type="text" name="name" value="ABRA KA DABRA!">
<input type="submit"/>
</form>
</body>
</html>
SUBMISSION REQUEST HANDLER CODE IN PHP
<?php
if(!empty($_POST))
{
$name = $_POST['name'];
/*/ this is the email we get from visitors*/
$domain_url = (isset($_SERVER['HTTPS']) ? "https" : "http") . "://$_SERVER[HTTP_HOST]";
$redirect_url = 'https://example.com/thank-you';
/*//-->MUST BE 'https://';*/
header("Content-type: application/json");
header("Access-Control-Allow-Credentials: true");
header("Access-Control-Allow-Origin: *.ampproject.org");
header("AMP-Access-Control-Allow-Source-Origin: ".$domain_url);
/*/ For Sending Error Use this code /*/
if(!mail("email@example.com" , "Test submission" , "email: $name <br/> name: $name" , "From: $name
")){
header("HTTP/1.0 412 Precondition Failed", true, 412);
echo json_encode(array('errmsg'=>'There is some error while sending email!'));
die();
}
else
{
/*/--Assuming all validations are good here--*/
if( empty($redirect_url))
{
header("Access-Control-Expose-Headers: AMP-Access-Control-Allow-Source-Origin");
}
else
{
header("AMP-Redirect-To: ".$redirect_url);
header("Access-Control-Expose-Headers: AMP-Redirect-To, AMP-Access-Control-Allow-Source-Origin"); }
echo json_encode(array('successmsg'=>$_POST['name'].'My success message. [It will be displayed shortly(!) if with redirect]'));
die();
}
}?>
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