Mailgun in Ionic 2 - CORS issues on iOS device?

@snstarosciak wrote:

Hey everyone,

I'm running into an issue trying to use Mailgun in my Ionic 3 app. When I run the function to send mail in the browser, I have a Chrome plugin that allows me to enable CORS and it can send the message just fine. However, in my app on my device, when I try to send an email, I get an error:

{ "body": { "isTrusted": true}, "status": 0, "ok": false, {}, "type": 3"url": null}

I believe this is related to CORS.

I even tried adding this line to my index.html file but all it did was cause all sorts of errors with trying to talk to my REST API:

<meta http-equiv="Content-Security-Policy" content="default-src *; style-src 'self' 'unsafe-inline'; script-src 'self' 'unsafe-inline' 'unsafe-eval'">

Here is the relevant code for the function that sends the email:

send(recipient: string, subject: string, message) {
      var requestHeaders = new Headers();
      requestHeaders.append("Authorization", "Basic " + this.mailgunApiKey);
      requestHeaders.append("Content-Type", "application/x-www-form-urlencoded");
      return this.http.request(new Request({
          method: RequestMethod.Post,
          url: `${this.mailgunUrl}/messages`,
          body: "from=bugs@bandly.com&to=" + recipient + "&subject=" + subject + "&text=" + message,
          headers: requestHeaders
      }));
    }

Does anyone have any insight into what I could missing here?

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