403 Error Persists After Changing File Permissions & Editing Htaccess File - php

Question

Below is some background on why I am asking this question followed by some research I have done as of now before bringing this question forward. I hope that I am asking the correct question. As is it often the case that we ask the wrong question because we do not fully understand the issue and therefore waste our time and those of others.
Discovery of an issue:
I click a button on my website that is supposed to save edits to an article. When I do click the button, I get the following : it turns white and nothing changes.
Below is the code for the button in question this button exists in the file community/profile.php.
<button onclick="saveEditedArticle();" class="btn btn-dark btn-lg btn-block" id="edit_postbutton">Save Article</button>
Initial Steps Taken To Investigate The Problem
I opened up the chrome dev tools to see what could possibly be happening.
1) In Chrome Dev Tools I Get A 403 Error
10jquery.js:8630 POST https://bullbuster.net/community/controllers/article.php 403
send # jquery.js:8630
ajax # jquery.js:8166
saveEditedArticle # (index):591
onclick # (index):6451
2) I Do Some Research To See What A 403 Error Is
3) I Use Google & Find Stack Overflow Questions On This Issue:
403 forbidden error -executing and ajax page
403 Forbidden error when making an ajax Post request
4) I am told a 403 Error Means That My File Has The Wrong Permissions
I then change the permissions for :
https://bullbuster.net/community/controllers/article.php
to 0755 (what this means) from 0644 (what this means)
5) I am told it is possible that it is an issue with my htaccess file:
Header set Access-Control-Allow-Origin "*"
Below is the part of the file from the community/controllers/article.php that access is being forbidden from (403) even though this file has 0755 permissions
case 'save-edit':
//echo 'made it';
$validation = $validate->check($_POST, array(
'edit_article_category' => array(
'required' => true,
),
'edit_new_post_title' => array(
'required' => true,
),
'edit_new_post_content' => array(
'required' => true,
),
'edit_line_type' => array(
'required' => true,
), /*
'edit_lbtest-select' => array(
'required' => true,
),*/
));
if($validation->passed()){
$update = $Ambassador->saveEditedArticle();
The function saveEditedArticle is found in two files:
1) community/profile.php
function saveEditedArticle()
{
event.preventDefault();
$("#edit_formatted-tags").val($("#edit_tags").tagsinput('items'));
//alert(tags);
//var form = $("#article").serialize();
//alert(tags);
$('.selectpicker').selectpicker('setStyle', 'error-input', 'remove');
$('#new_post_title').removeClass('error-input');
$('#redactor-uuid-0').removeClass("error-input");
$.ajax({
url: './controllers/article.php',
type: 'post',
dataType: 'json',
crossDomain: 'true',
data:
$("#edit_article").serialize()
,
success: function(data){
if(data == 'validation passed'){
$('#edit_validation-error').hide();
$('#edit_postbutton').attr('disabled', 'true');
$('#edit_submission-success').show();
setTimeout(function() {
//location.reload();
var location = window.location.href;
window.location = location;
}, 1500);
} else {
for (i = 0; i < data.length; i++) {
var field = data[i][0];
//$('#'+field).addClass("error-input");
if(field=='edit_new_post_title'){
$('#edit_new_post_title').addClass("error-input");
}
if(field=='edit_new_post_content'){
$('.redactor-editor').addClass("error-input");
}
$('#'+field).selectpicker('setStyle', 'error-input');
$('#edit_validation-error').show();
}
}
}
});
}
2) This is in the file classes/ambassador.php
public function saveEditedArticle(){
$content = Input::get('edit_new_post_content');
$start = "<img src=\"";
$end = "\"";
$image = self::getBetween($content, $start, $end);
if($image==''){
$start = "src=\"//www.youtube.com/embed/";
$end = "\"";
$image = self::getBetween($content, $start, $end);
if($image!=''){
$image = "https://img.youtube.com/vi/" . $image . "/0.jpg";
}
if($image==''){
$start = "//player.vimeo.com/video/";
$end = "\"";
$image = self::getBetween($content, $start, $end);
if($image!=''){
$link = 'https://vimeo.com/api/v2/video/' . $image . '.php';
$html_returned = unserialize(file_get_contents($link));
$image = $html_returned[0]['thumbnail_large'];
}
}
}
if($image==''){
$image = 'img/articles/475-33d0f7b0970af583c001559f19c26911.jpg';
}
//$content = str_replace('http://', 'https://', Input::get('new_post_content'));
$slug1 = strtolower(Input::get('edit_article_category'));
$slug2 = strtolower(Input::get('edit_new_post_title'));
$slug2 = preg_replace('/[^a-zA-Z0-9 ]/s', '', $slug2);
$slug = $slug1 . '/' . $slug2;
$slug = str_replace(' ', '-', $slug);
$slug = preg_replace ('/-+/', '-', $slug);
$article_category = Input::get('edit_article_category');
$article_title = ucwords(Input::get('edit_new_post_title'));
$article_content = Input::get('edit_new_post_content');
$line_category_id = Input::get('edit_line_type');
//$lb_test_id = Input::get('edit_lbtest-select');
$tags = Input::get('edit_formatted-tags');
$article_id = Input::get('article_id');
$update = $this->_db->update('Article', $article_id,
array(
'category'=>$article_category,
'title'=>$article_title,
'content'=>$article_content,
'line_category_id'=>$line_category_id,
//'lb_test_id'=>$lb_test_id,
'tags'=>$tags,
'image_preview'=>$image,
'slug'=>$slug
),
'id');
}