title: MongoDb connection string problem - retryWrites Expected stringified boolean value
body: <p>i have a problem with the connection to an Atlas cluster for mongoDB.</p>
  <p>if i try to fetch some data it returns an error</p>
  <blockquote>
  <p>&quot;No write concern mode named 'majority',' found in replica set configuration&quot;</p>
  </blockquote>
  <p>i've looked up the error and everybody says to delete the <code>&amp;w=majority</code> at the end of the connection string.</p>
  <p>did that but now i'm facing a new error</p>
  <blockquote>
  <p>UnhandledPromiseRejectionWarning: MongoParseError: For retryWrites Expected stringified boolean value, got: true</p>
  </blockquote>
  <p>I haven't modified the string in any way, it was working yesterday.</p>
  <p>my string is</p>
  <blockquote>
  <p>mongodb+srv://username:password@cluster0.yummd.mongodb.net/dbName?retryWrites=true&amp;w=majority</p>
  </blockquote>
  <p>there's no white space or anything at the end of the string, dunno what it is.</p>
  <p>any help?</p>