PHP - Link Follow In Mixxed Html Php Line

I have a class ServerBridge which is used to proxy browser ajax requests received by a web server to another API server.  To update a record (or create a record is similar):

Why is step 5 occurring and how do I prevent it?  I don't really mind the browser client making another request to the resource, but it would need to be GET and not PUT.  Also, is my white-list headers to forward to api server and black-list headers to return to browser client appropriate?

I haven't posted the ServerBridge script (but can if needed), but did include the requests and headers related to the browser client, web server, and api server below.

Browser client JavaScript

$('.edit-record').simpleEdit('/api/accounts');

jQuery.fn.extend({
    simpleEdit: function(url, options) {
        var dOptions={type: 'text', ajaxOptions: {type: "PUT"}, placement: 'right', send: 'always' };
        options=options?options:{};
        return this.each(function() {
            var $t=$(this);
            var o=Object.assign({
                url: url+'/'+$t.closest('tr').data('id'),
                title: 'Enter '+$t.data('name')
            }, dOptions, options);
            $t.editable(o);
        });
    }
});

Web-server index.php

$c['serverBridge'] = function ($c) {
    return new \Greenbean\ServerBridge\ServerBridge(
        new \GuzzleHttp\Client([
            'base_uri' => $c['settings']['server']['scheme'].'://'.$c['settings']['server']['host'],
            'headers' => ['X-Secret-Key' => $c['settings']['server']['key']],
            'timeout'  => 30,
            'allow_redirects' => false,
        ]),
        new \Greenbean\ServerBridge\SlimHttpClientHandler()
    );
};

$app->put('/api/accounts/{id:[0-9]+}', function (Request $request, Response $response) {
    return $this->serverBridge->proxy($request, $response,
        function(string $path):string{
            return substr($path, 4);       //Remove "/api" from uri
        },
        function(array $headers):array{
            if(!empty($headers['Location'])) {
                $headers['Location'] = ['/api'.$headers['Location'][0]];  //Add "/api" to redirect header if it exists
            }
            return $headers;
        }
    );
});
$app->POST('/api/accounts/{id:[0-9]+}', function (Request $request, Response $response) {/*Similar to PUT*/});

<?php

class ServerBridge
{
    public function __construct(\GuzzleHttp\Client $httpClient, ?HttpClientHandlerInterface $httpClientHandler=null){
        $this->httpClient=$httpClient;
        $this->httpClientHandler=$httpClientHandler;    //Whether to use Slim or Sympony HTTP requests and responses
    }

    public function proxy($clientRequest, $clientResponse=null, \Closure $modifyPath=null, \Closure $modifyHeaders=null) {
        //Accept a Slim or Sympony HTTP request, forward it to API server via cURL, and return the cURL response
        //$modifyPath will modify REQUEST_URI before sending to API server 
        //$modifyHeaders will modify response headers before sending to calling client 
        return $response;
    }
}

API Server index.php

$app->put('/accounts/{id:[0-9]+}', function (Request $request, Response $response, $args) {
        $this->accounts->update($args['id'], $request->getParsedBody());
        return $response->withRedirect('/accounts/'.$args['id'], 302);
});

$app->post('/accounts', function (Request $request, Response $response) {
        $account = $this->accounts->create($request->getParsedBody());
        return $response->withRedirect('/accounts/'.$account['id'], 302);
});

Browser Client
    Request URL:https://admin.tapmeister.com/api/accounts/1974750116
    Request method:PUT
    Remote address:73.108.50.132:443
    Status code:302
    Version:HTTP/1.1
    Request headers (477 B)    
        Raw headers
        Accept    */*
        Accept-Encoding    gzip, deflate, br
        Accept-Language    en-US,en;q=0.5
        Connection    keep-alive
        Content-Length    30
        Content-Type    application/x-www-form-urlencoded; charset=UTF-8
        Cookie    PHPSESSID=d11m0k37mf3veaeg0rs350rvkp
        Host    admin.tapmeister.com
        Referer   https://admin.tapmeister.com/
        User-Agent    Mozilla/5.0 (Windows NT 10.0; …) Gecko/20100101 Firefox/68.0
        X-Requested-With    XMLHttpRequest
    Response headers (408 B)    
        Cache-Control no-store, no-cache, must-revalidate
        Connection Keep-Alive, Keep-Alive
        Content-Length 0
        Content-Type text/html; charset=UTF-8
        Date Sat, 31 Aug 2019 16:18:47 GMT
        Expires    Thu, 19 Nov 1981 08:52:00 GMT
        Keep-Alive    timeout=5, max=100
        Location    /api/accounts/1974750116
        Pragma    no-cache
        Server    Apache/2.4.6 (CentOS) OpenSSL/1.0.2k-fips
        X-Powered-By    PHP/7.3.9

Web Server
    PUT admin.tapmeister.com/api/accounts/1974750116  REDIRECT_STATUS: 200 REDIRECT_URL: /api/accounts/1974750116
    Request headers
        Cookie: PHPSESSID=d11m0k37mf3veaeg0rs350rvkp
        Connection: keep-alive
        Content-Length: 30
        X-Requested-With: XMLHttpRequest
        Content-Type: application/x-www-form-urlencoded; charset=UTF-8
        Referer: https://admin.tapmeister.com/
        Accept-Encoding: gzip, deflate, br
        Accept-Language: en-US,en;q=0.5
        Accept: */*
        User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:68.0) Gecko/20100101 Firefox/68.0
        Host: admin.tapmeister.com
    Response headers    
        Date: [Sat, 31 Aug 2019 16:18:47 GMT],
        Server: [Apache/2.4.6 (CentOS) OpenSSL/1.0.2k-fips],
        X-Powered-By: [PHP/7.3.9],
        Location: [/accounts/1974750116],
        Content-Length: [0],
        Access-Control-Allow-Origin: [*],
        Access-Control-Allow-Methods: [GET, POST, PUT, DELETE, OPTIONS],
        Access-Control-Allow-Headers: [X-Secret-Key, Origin, X-Requested-With, Content-Type, Accept],
        Keep-Alive: [timeout=5, max=100],
        Connection: [Keep-Alive],
        Content-Type: [text/html; charset=UTF-8]

API Server
    PUT api.admin.tapmeister.com/accounts/1974750116 REDIRECT_STATUS: 200 REDIRECT_URL: /accounts/1974750116
    Request headers
        Content-Length: 30
        Accept: */*
        Accept-Language: en-US,en;q=0.5
        Accept-Encoding: gzip, deflate, br
        Content-Type: application/x-www-form-urlencoded; charset=UTF-8
        Connection: keep-alive
        Host: api.admin.tapmeister.com
        User-Agent: GuzzleHttp/6.3.3 curl/7.29.0 PHP/7.3.9
        X-Secret-Key: secretKey
 

Hi there,

I am trying to wrap some content in a div, but when I render it, it is outputting the actual HTML.

This is the line I have:

add_filter( 'woocommerce_product_description_heading', 'rename_product_description_heading', 10, 1 );
function rename_product_description_heading( $heading ) {
    return  __( '<div class="myclass">Additional Information</div>', 'woocommerce' );
}

which is outputting:

<div class="myclass">Additional Information</div>

rather than wrapping it in the div.

Can anyone help me with wrapping the "Additional Information" text in a div?

Thank you :)

<?php

include ("databaseconnections/conx_stampsforsale.php");
  
$sql = mysql_query("SELECT country, description, price FROM stampsforsale");

if (!$sql)
  die ("Error Displaying Data. " . mysql_error());
else
{
  echo ("<table><tr>");  
  $count = 0;
  while ($row = mysql_fetch_array($sql))
  {
  $target_path = "stampsforsale/" . basename($row['country'] . ".jpg");
  echo ("<td><a href='" . $target_path . "' target='_blank'><img src='" . $target_path . "'width=150 height=100></a><br />" . $row['country'] . "<br />" . $row['description'] . "</br>" . $row['price'] . "<br /><br /></td>");
  $count++;
  if ($count % 3 == 0)
  {
    echo ("<tr>");
  }
  }
  echo ("</tr></table>");
 }
 // end of displaying data
  
?>

<?php

include ("databaseconnections/conx_stampsforsale.php");

function getCountryStamps($country)
{
$sql = mysql_query("SELECT country, description, price FROM stampsforsale WHERE country = $country");

if (!$sql)
  die ("Error Displaying Data. " . mysql_error());
else
{
  echo ("<table><tr>");  
  $count = 0;
  while ($row = mysql_fetch_array($sql))
  {
  $target_path = "stampsforsale/" . basename($row['country'] . ".jpg");
  echo ("<td><a href='" . $target_path . "' target='_blank'><img src='" . $target_path . "'width=150 height=100></a><br />" . $row['country'] . "<br />" . $row['description'] . "</br>" . $row['price'] . "<br /><br /></td>");
  $count++;
  if ($count % 3 == 0)
  {
    echo ("<tr>");
  }
  }
  echo ("</tr></table>");
 }
 // end of displaying data    
}

  
?>

<?php
$row = 1;
//open the file
if (($handle = fopen("file.csv", "r")) !== FALSE)
{
    while (($data = fgetcsv($handle, 0, ",")) !== FALSE)
    {
        $num = count($data);
        echo "<p> $num fields in line $row: <br /></p>\n";
        $row++;
        for ($c=0; $c < $num; $c++)
        {
            echo $data[$c] . "<br />\n";
        }
    }
    fclose($handle);
}
?>