当要加载的页面具有无效的内容类型响应标头时，PhantomJS将返回状态fail

AddType text/html .html

var page = require('webpage').create();
page.onResourceReceived = function(response) {
    if (response.stage === 'end') {
        if (response.headers.some(header => header.name.toLowerCase() === 'content-type' && !header.value.startsWith('text/html'))) {
            console.log('Invalid Content-Type:', response.headers);
            phantom.exit(1); // 退出并返回失败状态
        }
    }
};
page.open('http://example.com', function(status) {
    if (status === 'success') {
        console.log('Page loaded successfully');
    } else {
        console.log('Failed to load the page');
    }
    phantom.exit();
});

const express = require('express');
const request = require('request');

const app = express();

app.get('/proxy', (req, res) => {
    const url = req.query.url;
    request(url).pipe(res);
});

app.listen(3000, () => {
    console.log('Proxy server running on port 3000');
});

page.open('http://localhost:3000/proxy?url=http://example.com', function(status) {
    // 处理页面加载状态
});