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January 22, 2017 09:59
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Reproduce the issue that two out-of-order responses for the same <link> element in servo will apply the wrong stylesheet
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <title>The fabulous always-green webpage</title> | |
| </head> | |
| <body> | |
| <script> | |
| var link = document.createElement("link"); | |
| link.rel = "stylesheet"; | |
| document.head.appendChild(link); | |
| link.href = "main.css"; | |
| link.href = "alternate.css"; | |
| </script> | |
| </body> | |
| </html> |
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| "use strict"; | |
| const http = require("http"); | |
| const fs = require("fs"); | |
| let last = undefined; | |
| const FILES = { | |
| "/main.css": "body { background-color: #F00; }", | |
| "/alternate.css": "body { background-color: #0F0; }", | |
| "/": fs.readFileSync("issue.html") | |
| }; | |
| const DELAYED = ["/main.css", "/alternate.css"]; | |
| function handleRequest(req, res) { | |
| if(FILES.hasOwnProperty(req.url)) { | |
| const sp = req.url.split("."); | |
| const ext = sp[sp.length - 1]; | |
| if(ext === "css") { | |
| res.setHeader("Content-Type", "text/css"); | |
| } | |
| else { | |
| res.setHeader("Content-Type", "text/html"); | |
| } | |
| res.end(FILES[req.url]); | |
| } | |
| else { | |
| res.end(""); | |
| } | |
| } | |
| http.createServer((req, res) => { | |
| console.log("req", req.url); | |
| if(DELAYED.indexOf(req.url) == -1) { | |
| handleRequest(req, res); | |
| } | |
| else if(last === undefined) { | |
| last = {req, res}; | |
| } | |
| else { | |
| handleRequest(req, res); | |
| const lastReq = last.req; | |
| const lastRes = last.res; | |
| setTimeout(() => handleRequest(lastReq, lastRes), 10); | |
| last = undefined; | |
| } | |
| }).listen(8080); |
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