parse importmap in index.html failed

[tjx666]

Describe the bug

        <script type="importmap">
            {
                "imports": {
                    "date-fns": "https://esm.dancf.com/npm:[email protected]/index.js",
                    "lodash": "https://esm.dancf.com/npm:[email protected]/lodash.js",
                    "nativebird": "https://esm.dancf.com/npm:[email protected]/promise.mjs",
                    "path-to-regexp": "https://esm.dancf.com/npm:[email protected]/index.js",
                    "pinia": "https://esm.dancf.com/npm:[email protected]/dist/pinia.mjs",
                    "qs": "https://esm.dancf.com/npm:[email protected]/dist/qs.js",
                    "vue": "https://esm.dancf.com/npm:[email protected]/dist/vue.runtime.esm.js",
                    "vue-demi": "https://esm.dancf.com/npm:[email protected]/lib/index.mjs",
                    "vue-router": "https://esm.dancf.com/npm:[email protected]/dist/vue-router.esm.js",
                    "vuedraggable": "https://esm.dancf.com/npm:[email protected]/dist/vuedraggable.umd.js"
                },
                "scopes": {
                    "https://esm.dancf.com/": {
                        "@vue/devtools-api": "https://esm.dancf.com/npm:@vue/[email protected]/lib/esm/index.js",
                        "@vue/reactivity": "https://esm.dancf.com/npm:@vue/[email protected]/dist/reactivity.esm-bundler.js",
                        "@vue/runtime-core": "https://esm.dancf.com/npm:@vue/[email protected]/dist/runtime-core.esm-bundler.js",
                        "@vue/runtime-dom": "https://esm.dancf.com/npm:@vue/[email protected]/dist/runtime-dom.esm-bundler.js",
                        "@vue/shared": "https://esm.dancf.com/npm:@vue/[email protected]/dist/shared.esm-bundler.js",
                        "sortablejs": "https://esm.dancf.com/npm:[email protected]/modular/sortable.esm.js",
                        "vue": "https://esm.dancf.com/npm:[email protected]/dist/vue.runtime.esm-bundler.js"
                    }
                }
            }
        </script>

Libarary Info(please complete the following information):

• "vite": "^3.2.5",
• "vite-plugin-imp": "^2.3.1"

To Reproduce

1. add importmap to index.html
2. vite build

Expected behavior

No error when build.

** Error message**
Paste the error message here.

Additional context

What is importmaps: https://github.com/WICG/import-maps

[tjx666]

Fixed in my self version: tjx666@598e242

[psaren]

Fixed in my self version: tjx666@598e242

PR Welcome!!!