我如何从ace编辑器上的url显示中读取文件

These days I am studying ajax and ace editor, I want to read a url file and display it on ace editor, I don't know how to get it when the url is https, do you have a good method?

<!doctype html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<link rel="stylesheet" type="text/css" href="https://cdnjs.cloudflare.com/ajax/libs/bootswatch/3.3.6/cerulean/bootstrap.min.css" media="all"/>
<style>
#code1,#code2{
    height:800px;
    font-size:14px;
    border-bottom:2px solid #999;
}
ul.app_cat_ul{
    padding:0px;
    list-style:none;
    overflow:hidden;
}
ul.app_cat_ul li a:hover{
    background-color:#EEE;
}
/* nav */
ul.nav_ul{
    margin:0px;
    padding:0px;
    list-style:none;
    overflow:hidden;
}
ul.nav_ul li{
    float:left;
    margin-right:3px;
}
ul.nav_ul li a{
    padding:12px;
    display:block;
    color:#555;
    background-color:#FFF;
    border:1px solid #EEE;
}
ul.nav_ul li a:hover{
    background-color:#EEE;
}
ul.ul_buttons li a{
    margin:5px 0px;
    color:#555;
    background-color:#FFF;
    border:1px solid #C0C0C0;
}
</style>
</head>
<body>
    <div class="header">
        <div class="container-fluid">
        <div class="row">
            <div class="col-md-12 text-center">
                <h1>ACE ajax test</h1>
            </div>
        </div>
        <div class="row">
            <div class="col-md-12">
                <div class="well well-sm">
                    <form class="form-inline text-left">
                    <fieldset>
                    
                    <div class="form-group buttons_div">
                      <div class="col-md-12">
                        <ul class="nav_ul ul_buttons">
                            <li><a id="load_url" href="#">Load&nbsp;Url</a></li>
                            <li><a id="browse" href="#">Browse</a></li>
                        </ul>
                      </div>
                    </div>
                    <input style="display:none;" id="file" name="file" class="btn btn-default" type="file">
                    </fieldset>
                    </form>
                 <div class="row">
                        <div class="col-md-12 div_code1">
                            <div class="h_text">Enter here:</div>
                            <div id="code1"></div>
                            <div id="code2" style="display:none"></div>
                        </div>
                    </div>
                </div><!-- Modal -->
                    <div class="modal fade" id="url_modal" tabindex="-1" role="dialog" aria-labelledby="myModalLabel">
                      <div class="modal-dialog" role="document">
                        <div class="modal-content">
                          <div class="modal-header">
                            <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
                            <h4 class="modal-title" id="myModalLabel">Enter Url</h4>
                          </div>
                          <div class="modal-body">
                            <input id="url" name="url" type="text" placeholder="Enter full url" class="form-control input-md">
                          </div>
                          <div class="modal-footer">
                            <button data-dismiss="modal" id="load" name="load" class="btn btn-success">Load</button>
                            <button data-dismiss="modal" id="cancel" name="cancel" class="btn btn-danger">Cancel</button>
                          </div>
                        </div>
                      </div>
                    </div>

            </div>
        </div>
        <div class="row">
            <div class="col-md-12 text-center">
                <div class="well well-sm data_tb text-left" style="overflow:auto;display:none;"></div>
            </div>
        </div>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.4/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.0.0-alpha/js/bootstrap.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jqueryui/1.11.4/jquery-ui.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/zclip/1.1.2/jquery.zclip.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/ace/1.2.3/ace.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/ace/1.2.3/ext-language_tools.js"></script>
<script>
$(document).ready(function(e) {
    
    ace.require("ace/ext/language_tools");
    var editorAce1 = ace.edit("code1");
    editorAce1.focus();
    editorAce1.setOptions({
        enableBasicAutocompletion: true,
        enableSnippets: true,
        enableLiveAutocompletion: true
    });
    editorAce1.setTheme("ace/theme/chrome");
    editorAce1.getSession().setMode("ace/mode/plain_text");
    
    var editorAce2 = ace.edit("code2");
    editorAce2.setOptions({
        enableBasicAutocompletion: true,
        enableSnippets: true,
        enableLiveAutocompletion: true
    });
    editorAce2.setTheme("ace/theme/chrome");
    editorAce2.getSession().setMode("ace/mode/html");
    editorAce2.getSession().setUseWorker(false);
    
    
    $("#load_url").click(function(e) {
        e.preventDefault();
        $("#url_modal").modal({backdrop : false});
    });
    
    $("#load").click(function(e) {
        e.preventDefault();
        url = $.trim($("#url").val());
        if(url != "")
        {
            editorAce1.getSession().setUseWorker(false);
            editorAce1.setValue("Please wait while loading file from url.");
            $.ajax({
                type    : "POST",
                url     : "/get_data.php",
                dataType: "text",
                data    : {"url" : url},
                success : function(data)
                {
                    if(data == "file_not_found")
                    {
                        editorAce1.setValue("Unable to load file from url!");
                    }else
                    {
                        editorAce1.getSession().setUseWorker(true);
                        editorAce1.setValue(data);
                    }
                },
                error   : function()
                {
                    editorAce1.setValue("Unable to load file from url!");
                }
            });
        }
    });
    
    $("#browse").click(function(e) {
        e.preventDefault();
        $("#file").click();
    });
    
    function read_file(e)
    {
        f = e.target.files[0];
        if(f)
        {
            r = new FileReader();
            r.onload = function(e)
            {
                var contents = e.target.result;
                var file_name = f.name;
                editorAce1.getSession().setUseWorker(true);
                editorAce1.setValue(contents);
            }
            r.readAsText(f);
        }
        else
        {
            editorAce1.getSession().setUseWorker(false);
            editorAce1.setValue("Unable to load file!");
        }
    }
    
    $("#file").change(function(e) {
        e.preventDefault();
        read_file(e);
    });
    
    
    
    themelist = ace.require("ace/ext/themelist");
    theme = "";
    $(themelist.themes).each(function(key, value) {
        theme += '<option value="' + value.name + '">' + value.caption + '</option>';
    });
    $("#themes").append(theme);
    
    $("#themes").val("chrome");
    $("#font_size").val("14");
    
    $("#themes,#font_size").change(function(e) {
        setTheme();
        editorAce1.focus();
    });
});


    
</script>
</body>
</html>

The userface pic Core code pic Most of codes have worked well. Could you help me write the get_data.php file for me, let the page work. Thanks.

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