vue-dompurify-html

⚠️ This branch is meant to be used with Vue 3. If you are looking for a version compatible with Vue 2, go to vue-legacy branch.

A "safe" replacement for the v-html directive. The HTML code is sanitized with DOMPurify before being interpreted.

This is only a small wrapper around DOMPurify to ease its usage in a Vue app. You should take a look at the DOMPurify Security Goals & Threat Model to understand what are the limitations and possibilities.

Installation

npm install vue-dompurify-html

Usage

import { createApp } from 'vue';
import App from './App.vue';
import VueDOMPurifyHTML from 'vue-dompurify-html';

const app = createApp(App);
app.use(VueDOMPurifyHTML);
app.mount('#app');

In your SFC:

<template>
    <div v-dompurify-html="rawHtml"></div>
</template>
<script setup>
import { ref } from "vue";

const rawHtml = ref('<span style="color: red">This should be red.</span>');
</script>

You can also define your DOMPurify configurations:

import { createApp } from 'vue';
import App from './App.vue';
import VueDOMPurifyHTML from 'vue-dompurify-html';

const app = createApp(App);
app.use(VueDOMPurifyHTML, {
    namedConfigurations: {
        'svg': {
            USE_PROFILES: { svg: true }
        },
        'mathml': {
            USE_PROFILES: { mathMl: true }
        },
    }
});
app.mount('#app');

Your configuration keys can then be used as an argument of the directive:

<template>
    <div v-dompurify-html="rawHtml"></div>
    <div v-dompurify-html:svg="svgContent"></div>
</template>
<script setup>
import { ref } from "vue";

const rawHtml = ref('<span style="color: red">This should be red.</span>');
const svgContent = ref('<svg><rect height="50"></rect></svg>');
</script>

Alternatively, you can define a default DOMPurify configuration:

import { createApp } from 'vue';
import App from './App.vue';
import VueDOMPurifyHTML from 'vue-dompurify-html';

const app = createApp(App);
app.use(VueDOMPurifyHTML, {
    default: {
        USE_PROFILES: { html: false }
    }
});
app.mount('#app');

The default DOMPurify configuration will be used:

<template>
    <div v-dompurify-html="rawHtml"></div>
</template>
<script setup>
import { ref } from "vue";

const rawHtml = ref('<span style="color: red">This should be red.</span>');
</script>

There is also the possibility to set-up DOMPurify hooks:

import { createApp } from 'vue';
import App from './App.vue';
import VueDOMPurifyHTML from 'vue-dompurify-html';

const app = createApp(App);
app.use(VueDOMPurifyHTML, {
    hooks: {
        uponSanitizeElement: (currentNode) => {
            // Do something with the node
        }
    }
});
app.mount('#app');

If needed you can use the directive without installing it globally:

<template>
    <div v-dompurify-html="rawHtml"></div>
</template>

<script setup lang="ts">
import { buildVueDompurifyHTMLDirective } from '../src/';

const vdompurifyHtml = buildVueDompurifyHTMLDirective(<config...>);
const rawHtml = '<span style="color: red">Hello!</span>';
</script>