How to use with local HTML files?

[Jean Kaddour]

Thanks for building this great tool!

What's the easiest way to use it for local files? I tried both absolute and relative paths and always get

 Internal server error Error: ERR_INVALID_URL (-300) loading ''
    at rejectAndCleanup (node:electron/js2c/browser_init:165:7500)
    at EventEmitter.failListener (node:electron/js2c/browser_init:165:7713)
    at EventEmitter.emit (node:events:527:28)
    at g.loadURL (node:electron/js2c/browser_init:165:8464)
    at n.loadURL (node:electron/js2c/browser_init:33:1856)
    at /app/build/html2svg.js:43:24
    at process.processTicksAndRejections (node:internal/process/task_queues:96:5) {
  errno: -300,
  code: 'ERR_INVALID_URL',
  url: ''
}
Error: Server error 500
    at printRequest (/app/build/html2svg.cli.js:88:15)
    at ClientRequest.<anonymous> (/app/build/html2svg.cli.js:73:38)
    at ClientRequest.emit (node:events:513:28)
    at HTTPParser.parserOnIncomingClient (node:_http_client:693:27)
    at HTTPParser.parserOnHeadersComplete (node:_http_common:117:17)
    at Socket.socketOnData (node:_http_client:534:22)
    at Socket.emit (node:events:513:28)
    at addChunk (node:internal/streams/readable:324:12)
    at readableAddChunk (node:internal/streams/readable:297:9)
    at Readable.push (node:internal/streams/readable:234:10)