title: In-App browser increases memory consumption in iOS
body: <p>In my app, user can visit link. I use in-app browser for that. But when user visits the site, memory consumption is increased from 25MB to 50MB and does not decrease even user closes the browser or come back to previous screen. </p>
  
  <p>Here is the simple code I am using to open browser: </p>
  
  <pre><code>    AppMainBrowserViewController *mainBrowser = [[AppMainBrowserViewController alloc] initWithNibName:@"AppMainBrowserViewController" bundle:nil];
      mainBrowser.urlString = urlString;
      [self.navigationController pushViewController:mainBrowser animated:YES];
  </code></pre>
  
  <p>In my <code>AppMainBrowserViewController</code>: </p>
  
  <pre><code>if ([InternetDetector isNetAvailable]) {
  
      if (self.processingIndicatorAlertView == Nil) {
          [self showIndicatorView];
      }
  
      //Request
      NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:self.urlString]];
      [self.mainWebView loadRequest:request];
  } else {
  
      UIAlertView *errorAlert = [[UIAlertView alloc] initWithTitle:ALERT_TITLE_MSG message:INTERNET_NOT_FOUND_MSG delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil];
      [errorAlert show];
  }
  </code></pre>
  
  <p>Where I am going wrong? </p>