cors error vue js laravel api

Hi, I keep getting this cors error whenever I try to upload a file from my vue js frond end to my laravel API backend

//vue form

<form method="post" enctype="multipart/form-data">
            <input type="file" accept="application/pdf" ref="identity" id="identity" v-on:change="handleFileUpload(), submitFile()" style="display: none">
            <b-button @click="$refs.identity.click()" class="outline small">Open Finder</b-button>
</form>

// script

methods: {
        /*
            Submits the file to the server
        */
        submitFile(){
            /*
                Initialize the form data
            */
            let formData = new FormData();

            /*
                Add the form data we need to submit
            */
            formData.append('identity', this.identity);

            Vue.axios.put('url/api/document_update', formData,
                {
                headers: {
                    'Content-Type': 'multipart/form-data'
                }
            })
        }
    }