app_for_reddit/Reddit App/Utilities/RedditAuthChromeStyle.swift

import Foundation

enum RedditAuthChromeStyle {
    /// Hides Reddit auth modal close buttons in the embedded WebView.
    static let injectionScript = """
    (function() {
      const STYLE_ID = 'reddora-auth-chrome-style';
      if (document.getElementById(STYLE_ID)) return;

      const style = document.createElement('style');
      style.id = STYLE_ID;
      style.textContent = `
        auth-flow-modal button[aria-label="Close"],
        auth-flow-modal button[aria-label="close"],
        faceplate-modal button[aria-label="Close"],
        shreddit-signup-drawer button[aria-label="Close"],
        [role="dialog"] button[aria-label="Close"] {
          display: none !important;
          visibility: hidden !important;
          pointer-events: none !important;
        }
      `;

      (document.head || document.documentElement).appendChild(style);
    })();
    """
}