为获取的文件设置MIME类型

Question

我有一个静态文件服务器（由vibe.d制造），为使用ES6模块但扩展名为.mjs的网站提供服务。

我的浏览器（Arch Linux上的Chromium）在获取server responded with a non-JavaScript MIME type of "application/octet-stream"的模块文件server responded with a non-JavaScript MIME type of "application/octet-stream"时，抛出了错误。

看来我需要使用.mjs从“ application / octet-stream”到“ application / javascript”设置MIME类型文件。 我该怎么做呢？ 我可以将所有脚本更改为.js但是那是我想弄清楚如何正确解决。

如何更改要提取的文件的MIME类型？ 也许更好，我可以更改所有.mjs文件的默认MIME类型吗？

这是我与vibe.d的d代码：

auto router = new URLRouter;
auto fileServerSettings = new HTTPFileServerSettings;
fileServerSettings.encodingFileExtension = ["gzip" : ".gz"];
router.get("/gzip/*", serveStaticFiles("./public/", fileServerSettings));
router.get("/ws", handleWebSockets(&handleWebSocketConnection));
router.get("*", serveStaticFiles("./public/",));

listenHTTP(settings, router);

Answer 1

响应中的内容类型标头需要更改。

Vibe.d可能有一种配置默认值的方法，但是您始终可以在发送响应以编辑以.mjs结尾的文件头之前捕获它。

您可以在vibe.d中执行以下操作：

auto router = new URLRouter;
auto fileServerSettings = new HTTPFileServerSettings;
fileServerSettings.encodingFileExtension = ["gzip" : ".gz"];
fileServerSettings.preWriteCallback = &handleMIME; // Add preWriteCallback to fileServerSettings
router.get("/gzip/*", serveStaticFiles("./public/", fileServerSettings));
router.get("/ws", handleWebSockets(&handleWebSocketConnection));
router.get("*", serveStaticFiles("./public/", fileServerSettings)); // Use fileServerSettings in this get too.

// preWriteCallback, will edit the header before vibe.d sends it.
void handleMIME(scope HTTPServerRequest req, scope HTTPServerResponse res, ref string physicalPath) {
    if (physicalPath.endsWith(".mjs")) {
        res.contentType = "application/javascript"; // vibe.d has an easy `.contentType` attribute so you do not have to deal with the header itself.
    }
}