我正在使用节点模块spdy实现 HTTP2/SPDY 推送资源。我已经关注了 indutny 的文档，并且一直在将他的示例实施到我的 server.js 中进行测试运行。
问题有两个方面；我在日志中没有收到任何错误，也没有alert在浏览器中看到。我也没有在开发者控制台中看到任何变化。如果我设置了一个虚假的推送 URL，我不会收到任何响应/错误等。我相信理论上，优先级应该从medium变为High（？）。请参阅屏幕截图。
我是否有另一种方法可以测试是否正在向浏览器进行推送？或者，我的脚本有问题吗（请检查不一致之处）？还有，要扔stream.on('error', function() {});什么？
在 Chrome（在 ChromeBook 上）、nodejs v5.1.0、npm v3.3.12 中进行测试 - 在 Chrome 中验证启用了 H2。
server.js：
var environment = '../env/' + process.env.NODE_ENV
// Process User config
, fS = require('fs')
, jsonFile = fS.readFileSync(environment + '/config.json')
, jsonString, hostIp, hostPort, cacheExp, cps;
try {
jsonString = JSON.parse(jsonFile);
var SERV_HOST = jsonString['hostIp']
, SERV_PORT = jsonString['hostPort']
, CACHE_EXP = jsonString['cacheExp']
, CPS = jsonString['cps']
, xPowerBy = 'OceanPress'
, xFrameOptions = 'DENY'
, xXSSProtection = '1; mode=block'
, xContentTypeOption = 'nosniff';
} catch (err) {
console.log('There is an error parsing the json file : ' + err);
}
// Load modules
var fs = require('fs')
, watch = require('staticsmith-watch')
, buffet = require('buffet')({root: environment + '/_public'})
, spdy = require('spdy')
// spdy options
, options = {
key: fs.readFileSync(environment + '/keys/key.pem')
, cert: fs.readFileSync(environment + '/keys/cert.pem')
// SPDY-specific options
, spdy: {
protocols: [ 'h2','spdy/3.1', 'spdy/3', 'spdy/2','http/1.1', 'http/1.0' ]
, plain: false
, maxStreams: 200
, connection: {
windowSize: 1024 * 1024
, autoSpdy31: false
}
}
// Set ip and port
, host: SERV_HOST
, port: SERV_PORT
}
// Security header options
, security = [
{ name: 'X-Powered-By',
option: xPowerBy }
, { name: 'x-frame-options',
option: xFrameOptions }
, { name: 'X-XSS-Protection',
option: xXSSProtection }
, { name: 'X-Content-Type-Options',
option: xContentTypeOption }
, { name: 'Cache-Control',
option: CACHE_EXP }
, { name: 'Content-Security-Policy',
option: CPS }
, { name: 'server',
option: 'Who knows' }
];
if (process.env.NODE_ENV == 'production') {
spdy.createServer(options, function(req, res) {
// Add Content Security Rules
for(var i = 0; i < security.length; i++) {
res.setHeader(security[i].name, security[i].option);
}
// @see https://www.npmjs.com/package/buffet
buffet(req, res, function (err, result) {
// Push JavaScript asset (main.js) to the client
var stream = res.push('/js/main.js', {
req: {'accept': '*/*'},
res: {'content-type': 'application/javascript'}
});
stream.on('acknowledge', function() {
console.log("Stream ACK");
});
stream.on('error', function() {
console.error("stream ERR");
});
stream.end('alert("hello from push stream!");');
// write main response body and terminate stream
res.end('<script src="/js/main.js"></script>');
// There was an error serving the file? Throw it!
if (err) {
console.error("Error serving " + req.url + " - " + err.message);
// Respond to the client
res.writeHead(err.status, err.headers);
}
});
}).listen(options.port, options.host);
console.log("serving at https://" + options.host + ":" + options.port);
console.log("On Node v" + process.versions.node);
console.log("On npm v" + process.versions.npm);
watch({
pattern: '**/*',
livereload: true,
});
}
更新： 我还添加了：
stream.on('acknowledge', function() {
console.log('stream ACK');
});
没有写入控制台日志 - 就像该功能已死。
带推流的开发控制台（main.js）：
