Failed to construct 'WebSocket' 'http' is not allowed

[Sokwva]

error message from edge devtools console:

index.js:95  [wxt] Failed to setup web socket connection with dev server DOMException: Failed to construct 'WebSocket': The URL's scheme must be either 'ws' or 'wss'. 'http' is not allowed.
    at getDevServerWebSocket

.output/background.js

  function getDevServerWebSocket() {
    if (ws == null) {
      const serverUrl = "http://localhost:3000";  ///here
      logger.debug("Connecting to dev server @", serverUrl);

enviroment:
OS: windows 10 21H2
browser: Edge 119.0.2151.72