Codes are displayed instead of html elements - html

Question

I have called ajax request in some interval of time. Now, if I pressed the back button after success ajax then, the browser displayed all of my HTML code instead of displaying HTML elements.
<script>
window.setInterval(function () {
$.ajax({
method: 'GET',
headers: {'X-CSRF-TOKEN': $('meta[name="csrf-token"]').attr('content')},
url: '{{route('devices.index')}}',
dataType: 'json',
success: function (data) {
}
});
}, 1000);
</script>
if($request->ajax()){
foreach ($devices as $device){
$latestUpdate = Carbon::parse($device->updated_at);
$diff = Carbon::now()->diffInMinutes($latestUpdate);
if($diff > 2){
Device::where('id',$device->id)->update(['status'=>'3']);
}
}
return response()->json(['msg' => "successfully checked"]);
}
I had expected to render the HTML elements, but it displayed.
{
"msg": "successfully checked"
}
Same things happened when I send HTML in json.
if($request->ajax()){
$returnHtml = view('alerts.index', compact('threshold'))
->with('alerts', $alerts)->render();
return response()->json(['html' => $returnHtml, 'data' => $alerts]);
}
window.setInterval(function () {
$.ajax({
method: 'GET',
headers: {'X-CSRF-TOKEN': $('meta[name="csrf-token"]').attr('content')},
url: '{{route('alerts.index')}}',
dataType: 'json',
success: function (data) {
var formatedhtml = $('<div>').html(data.html).find('table');
$('table').html(formatedhtml);
}
});
}, 5000);
In this case it display

Answer 1

Instead of returning as json return data as array:
Try something like this
return ['html' => $returnHtml, 'data' => $alerts];

Answer 2

There's nothing wrong with how you are receiving the data when you use return response()->json(['html' => $returnHtml, 'data' => $alerts]);
If you want to actually put the html that you received from your server into an element in your page, you will need to use Element.innerHTML (https://developer.mozilla.org/en-US/docs/Web/API/Element/innerHTML) so that the html will not be escaped by the browser.
window.setInterval(function () {
$.ajax({
method: 'GET',
headers: {'X-CSRF-TOKEN': $('meta[name="csrf-token"]').attr('content')},
url: '{{route('devices.index')}}',
dataType: 'json',
success: function (data) {
// this is the table where you want to place the received table contents
var my_table=$('#my-table')
// we turn the data we received from the server into a jQuery object, then find the table we want data from
var received_table=$(data.html).find('table')
// switch out the table contents
my_table.html(received_table.html())
}
});
}, 1000);
EDIT: Since you are using jQuery, I changed the answer to fit.