React中信用卡自动填充功能失效问题求助

Hey there, let's break down why your credit card autofill works in CodeSandbox but stops when you move the code to a fresh create-react-app setup on your iPhone 6. I've dealt with similar browser autofill quirks before, so here are the most likely fixes to try out:

• Double-check autocomplete attributes and input naming
  CodeSandbox might be implicitly handling some browser autofill triggers, but in a local CRA setup, you need to be explicit. Safari on iOS relies heavily on the autocomplete attribute and matching name values to recognize credit card fields. Make sure your inputs use these exact values:

  • Card number: autocomplete="cc-number" with name="cc-number"
  • Cardholder name: autocomplete="cc-name" with name="cc-name"
  • Expiration date: autocomplete="cc-exp" with name="cc-exp"
  • CVV: autocomplete="cc-csc" with name="cc-csc"

  Example code snippet for reference:

  <form>
    <input
      type="text"
      name="cc-number"
      autocomplete="cc-number"
      placeholder="Card Number"
    />
    <!-- Add other card fields with matching attributes -->
  </form>
  

• Ensure you're using HTTPS
  iOS Safari restricts autofill features to secure contexts (HTTPS). CodeSandbox serves content over HTTPS by default, but your local CRA setup uses http://localhost by default, which won't trigger the autofill prompt. To test this, run your CRA app with HTTPS enabled:

  • For npm: HTTPS=true npm start
  • For yarn: HTTPS=true yarn start
    This will serve your app over https://localhost, matching CodeSandbox's secure environment.

• Verify your form structure
  Safari on iOS often won't trigger autofill unless your inputs are wrapped in a proper <form> tag—even if you're handling submission programmatically. Also, make sure you haven't set autocomplete="off" on the parent form or any container elements, as this overrides individual input settings.

• Check CRA's default meta tags
  Head to your CRA's public/index.html and confirm the viewport meta tag is set correctly (it should be by default, but sometimes custom changes break things):

  <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
  

  Avoid any custom content-security-policy meta tags that might block autofill-related browser behavior (unlikely in a fresh CRA setup, but worth checking).

• Confirm saved card data on your iPhone
  It sounds obvious, but double-check that your iPhone 6 has credit card data saved in Safari settings. Go to Settings > Safari > Autofill > Credit Cards to ensure your cards are stored there—the autofill prompt only appears if there's data to use.

Give these steps a try—nine times out of ten, it's one of these small details that makes the difference between CodeSandbox and a local CRA setup. Let me know if you hit any snags!

内容的提问来源于stack exchange，提问作者Inigo Llamosas