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Chrome扩展程序-在onBeforeRequest中获取Content-Type

[英]Chrome extension - getting Content-Type in onBeforeRequest

原文 2017-03-20 13:18:23 3 1 javascript/ google-chrome-extension

In a chrome extension I need to know what is the Content-Type of the request in onBeforeRequest callback, because if the Content-Type is application/x-www-form-urlencoded I want to decode the data in requestBody . 在chrome扩展程序中，我需要知道onBeforeRequest回调中请求的Content-Type是什么，因为如果Content-Type是application/x-www-form-urlencoded我想对requestBody的数据进行解码。 however according to the life cycle documentation ( https://developer.chrome.com/extensions/webRequest ) the http headers are not yet available during onBeforeRequest , so I don't know what is the Content-Type. 但是，根据生命周期文档（ https://developer.chrome.com/extensions/webRequest），http头在onBeforeRequest期间尚不可用，因此我不知道什么是Content-Type。 is there a way to know if the data is url-encoded during onBeforeRequest ? 有没有办法知道在onBeforeRequest期间数据是否经过url编码？

1 个解决方案

This is not possible at the time you desire. 在您想要的时候这是不可能的。 webRequest.onBeforeRequest fires prior to the request being made. webRequest.onBeforeRequest在发出请求之前触发。 The data you want is something that is provided by the server in response to the request. 所需的数据是服务器响应请求提供的数据。 You are looking for header information. 您正在寻找标题信息。 The earliest this is available is in the webRequest.onHeadersReceived event. 最早可用的是在webRequest.onHeadersReceived事件中。

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