Can't get elevation from mapbox terrain webp

[geobuilding]

https://codesandbox.io/s/terrain-rgb-g4nym?file=/src/index.ts

import { TerrainRGB } from "@watergis/terrain-rgb";

const url = "https://api.mapbox.com/raster/v1/mapbox.mapbox-terrain-dem-v1/{z}/{x}/{y}.webp?sku=10149h63PJzgC&access_token=pk.eyJ1IjoiZGV2LWFhYyIsImEiOiJjbDI5MGl5N3QwZGNlM2NuN3l6bGtxaTd6In0.ornsESAnvKKQedUSw2fKyA";
const trgb = new TerrainRGB(url, 512);
const coordinate = [78.34336242946887, 22.133570853753696];
const zoom = 14;


trgb.getElevation(coordinate, zoom).then((elevation: number | undefined) => {
  const doc = document.getElementById("app");
  if (doc) {
    doc.innerHTML = `
    <h1>Hello terrain-rgb!</h1>
    <div>
      <ul>
        <li>URL: ${url}</li>
        <li>Longitude: ${coordinate[0]}</li>
        <li>Latitude: ${coordinate[1]}</li>
        <li>Zoom level: ${zoom}</li>
        <li>Elevation: ${elevation}</li>
      </ul>
    </div>
    <div>
    Look the repository at <a href= "https://github.com/watergis/terrain-rgb" >watergis/terrain-rgb</a>
    </div>
    `;
  }
});

[JinIgarashi]

@hong4k Thank you for reporting. Getting value from terrain rgb webp in the browser is currently not working. the plugin only support WEBP for nodejs application. But welcome any pull request to fix this issue.