UrlSearchParams toString not available

[bergwerf]

You should be able to use URLSearchParams.toString() to get a "a query string suitable for use in a URL." (https://developer.mozilla.org/en-US/docs/Web/API/URLSearchParams/toString). Instead you get Instance of 'Interceptor'.

import 'dart:html';

void main() {
  final params = new UrlSearchParams();
  params.set('a', 'b');
  print('$params');
}

Looks related: https://github.com/dart-lang/sdk/issues/30096

I opted to use this class from dart:html instead of Uri because I just wanted to manipulate a search query (without other parts of the url being available).

EDIT: I didn't find this until I compiled using dart2js since in the dev compiler the JavaScript toString is actually used. At the very least this is a discrepancy.

[jtaylor-dohle]

Having the same issue - in compiled code toString() produces Instance of 'URLSearchParams'

@bergwerf Did you find a workaround? I'd prefer not to use JS directly.