内容安全政策：该页面的设置阻止了http://127.0.0.1:8000/favicon.ico“ default-src”上的资源加载

如何解决内容安全政策：该页面的设置阻止了http://127.0.0.1:8000/favicon.ico“ default-src”上的资源加载

我对此网络应用进行了编码，并遇到以下错误： 内容安全政策：页面的设置已阻止在http://127.0.0.1:8000/favicon.ico（“ default-src”）加载资源。

Views.py代码：

    def following(request):
        if request.user.is_authenticated:
            username=request.user.username
            user_id=User.objects.get(username=username)
            following=Followers.objects.filter(userid=user_id)
            post_list1=None
            for f in following:
                post_list=Post.objects.filter(userid=f.followeruserid)
                if post_list1 is None:
                    post_list1=Post.objects.filter(userid=f.followeruserid)
                post_list1=post_list1.union(post_list,post_list1)
            #post_list1=list(Post.objects.all().values())
            
            return JsonResponse({
                "posts":list(post_list1.values())
                        #"likes":list(likes.values())
                })
        else:
            return render(request,"network/login.html")

javascript代码：

    function fetchfollowing() {
    
        fetch(`/following`)
        .then(response => response.json())
        .then(data => {
           /* const page=document.querySelector('#page3').innerText;
            pagein=Number(localStorage.getItem('page'));
            if (pagein>page){
                document.querySelector('#page1').innerText=pagein
                document.querySelector('#page2').innerText=pagein+1
                document.querySelector('#page3').innerText=pagein+2
            }*/
            add_post(data.posts,data.likes)
            window.scroll(0,localStorage.getItem('position'))
        })
    }
    
    function add_post(contents,liked) {
    
        // Create new post
            
                for (let j=0;j<contents.length;j++){
                    const post = document.createElement('div');
                    post.className = 'post';
                    post.id=contents[j].id
                    var counter=0;
                    var likeverb;
                    if (liked != undefined ){
                            var username = document.querySelector('#userloged').innerHTML;
                        
                        for (let i=0;i<liked.length;i++){
                            if (liked[i].postid_id===contents[j].id && liked[i].username===username){
                                counter++;
                            }
                        }
                        if (counter===0){
                            likeverb='Like'
                        }
                        else{
                            likeverb='Unlike';
                            
                        }
                    }
                    else{
                        likeverb='Login';
                        username=0;
                    }
                    var d=new Date(contents[j].DateTime)
                    var formatdate=d.toLocaleDateString(undefined,{month:'long',day:'numeric',year:'numeric'})+' '+d.toLocaleTimeString()
                    if (contents[j].username===username){
                        post.innerHTML = `<a href="profile?id=${contents[j].userid_id}">${contents[j].username}</a><br>${formatdate}<br>${contents[j].post}<br>${contents[j].totallikes}
                        <br><button class="edit">Edit</button> <a href="" class="like">${likeverb}</a>`;
                    } 
                    else {
                        post.innerHTML = `<a href="profile?id=${contents[j].userid_id}">${contents[j].username}</a><br>${formatdate}<br>${contents[j].post}<br>${contents[j].totallikes}
                        <br><a href="" class="like">${likeverb}</a>`;
                    }
                    // Add post to DOM
                    document.querySelector('#posts').append(post);
            }
        
    };

这是我的HTML代码：

    {% extends "network/layout.html" %}
    {% block body %}
        {% if user.is_authenticated %}
    
    
        {% endif %}
            <div id='posts'>
            </div>
    {% endblock %}

这就是我得到的结果

有人可以帮忙，让我知道这是怎么回事