To debug web pages on your iPhone, you can do it via Safari Remote Debug, vConsole, or emulated UA; 1. Use Mac Safari to open the development menu and connect to the iPhone for remote debugging; 2. Introduce the vConsole Debug Library to view logs and network requests; 3. Use Chrome DevTools to simulate iPhone screen size and user agent to test responsive layouts.

To debug web pages on iPhone, Chrome itself does not directly support debugging iPhone browsers through Chrome on PC. But you can achieve similar effects in some indirect ways, especially with Safari's remote debugging capabilities and Chrome's DevTools-style operations.

Remotely debug web pages on your iPhone using Safari

Although you are using Chrome, the most direct and effective way is to use the combination of Mac Safari iPhones for remote debugging:

1. Open Settings > Safari > Open Development Menu on iPhone.
2. Open Safari on your Mac and go to Preferences > Advanced > Check "Show 'Development' menu in the menu bar".
3. Connect your iPhone to your Mac using a data cable.
4. Click the "Development" menu in Safari on your Mac, and you will see the name of the connected device and select the page label you want to debug.
5. The developer tool interface opened is similar to Chrome DevTools, which allows you to view console logs, element structures, network requests, etc.

This approach is the closest alternative to "debug iPhone with Chrome".

Using Chrome Remote Tools (for Android)

If you are using Chrome on your PC and connecting to an Android device, you can debug your phone browser directly through USB and Chrome's remote debugging capabilities. But this path cannot be done on iPhones because iOS does not allow third-party browsers to use a complete remote debugging interface.

Alternative: Use vConsole or similar front-end debug library

If you just want to view console output or DOM structure, you can introduce a lightweight debugging tool in the web page, such as vConsole :

 <script src="https://unpkg.com/vconsole@3.3.4/dist/vconsole.min.js"></script>
<script>new VConsole()</script>

In this way, when opening the page on the iPhone, a floating debugging panel will be displayed, which can view console logs, network requests, local storage and other contents. Although the functionality is not as comprehensive as DevTools, it is enough for daily debugging.

Tips: Simulate iPhone screen size and user agent

If you just want to test responsive layouts or some UA related logic, you can simulate iPhone through DevTools on PC:

1. Open Chrome DevTools (F12 or right-click to check).
2. Click the "Switch Device Toolbar" icon in the upper left corner.
3. Select the iPhone model in the drop-down menu, such as the iPhone 13 Pro.
4. If more precise UA simulation is required, you can change the User Agent in More Tools > Sensors.

Although this cannot completely replace real machine debugging, it is enough to troubleshoot some problems.

In general, the path of directly debugging iPhone web pages on the PC side does not work at present. The most practical method is to use Mac Safari to achieve remote debugging, or use front-end debugging libraries such as vConsole as assistance. Basically all is it, not complicated but it is easy to ignore details.

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