Sinch在Safari浏览器无法运行，提示找不到SinchClient变量的解决办法

Hey there, let's work through this Safari-specific issue with your Sinch integration. I've dealt with similar cross-browser inconsistencies before, so here are actionable fixes to try out:

• Verify Sinch script loading timing
  Safari handles async/defer script loading differently than Chrome, which might cause your code to run before SinchClient is available. Instead of relying on script tags with async attributes, load the script dynamically and wrap your initialization code in the onload callback:

  const sinchScript = document.createElement('script');
  sinchScript.src = 'https://cdn.sinch.com/latest/sinch.min.js';
  sinchScript.onload = function() {
    // Initialize SinchClient only after the script is fully loaded
    const sinchClient = new SinchClient({
      // Your configuration here
    });
  };
  document.head.appendChild(sinchScript);
  

  Also, ensure your Sinch-related code runs after the DOMContentLoaded event fires, as Safari's DOM ready trigger can be slightly delayed compared to Chrome.

• Check Safari's browser settings

  • Double-check that JavaScript is enabled: Go to Safari > Settings > Security and make sure "Enable JavaScript" is checked.
  • Temporarily disable "Prevent cross-site tracking" (under Safari > Settings > Privacy). This feature can sometimes block third-party scripts like Sinch from loading properly.

• Update to the latest Sinch SDK version
  Older versions of the Sinch Web SDK might have compatibility gaps with Safari. Swap out your current script URL for the latest official CDN link to ensure you're running the most Safari-friendly build.

• Validate your Content Security Policy (CSP)
  If your site uses a CSP, make sure it explicitly allows loading scripts from Sinch's CDN. Add this directive to your CSP header:

  script-src 'self' https://cdn.sinch.com;
  

  Without this, Safari will block the Sinch script from loading, resulting in the SinchClient undefined error.

• Debug script loading status
  Open Safari's Developer Tools (Command + Option + I), go to the "Network" tab, and refresh your page. Look for the Sinch script—if it returns a non-200 status code, there's a network or blocking issue. You can also run console.log(window.SinchClient) in the console; if it returns undefined, the script hasn't loaded successfully.

Give these steps a shot, and you should have Sinch working in Safari in no time!

内容的提问来源于stack exchange，提问作者Ronald Torres