Fiddler can t catch packets in the browser?

Check whether the capture function is enabled, and there are three common ways to enable the capture function:

1) In the menu bar, File == >> Capture Traffic is checked.

2) F12 on or off.

3. Tap Capturing in the lower left corner to turn the capture function on or off.

You can learn about the software testing course of the dark horse programmer, which is very detailed.

Recently, when opening fiddler, I often can't catch the package.

1.Let's see if Fiddler allows crawling of https packages. (Most of the browsers are https).

tools-->options-->https to enter this page.

2.Check that the browser does not have a certificate installed.

On this page, click on Actions and select the second option to export the security certificate to your desktop.

browser to install the certificate. I'm using the chome browser. Open Settings and find Manage Certificates. Click.

Click Import. Import the certificate you just placed on your desktop.

3.Check if it is present in the browser.

Set ** to not use**.

Once you're done, restart your browser and fiddler, and you'll be able to grab the package by accessing it again.

4.Check to see if an external app is blocking Fiddler's packet capture and stop some antivirus software.

Fiddler can only capture IE browser requests after the update,Edge and Sogou browse Sun Gazer's package are all not caught,Do you have friends who know how to set it。

Hello, I'm glad to serve you and give you the following answer: Fiddler is a powerful packet capture tool that can capture requests from multiple browsers such as IE, Edge, and Sogou. However, with the update of Fiddler, only IE browser requests can be captured, and both Edge and Sogou browser packages cannot be caught.

To solve this problem, you need to set up some settings in Fiddler. First of all, open Fiddler, click "Settings" on the toolbar, click on the "https" tab in the pop-up settings window, check "Capture all client SSL traffic", and then click the "OK" button to save the settings. Secondly, click "Block" on the toolbar, in the pop-up blocking window, check "Enable Blocking", and then click the "OK" button to save the settings.

Finally, click "Capture" on the toolbar, check "Capture all traffic" in the pop-up capture window, and then click the "OK" button to save the settings. With the above settings, Fiddler can capture requests from various browsers such as IE, Edge, and Sogou browsers.

1.To start Pausing the packet capture, by clicking on it"file"->"capture traffic", or press the shortcut key F12 directly;

3.Grab the packets of the specified process, and if the target process has a window, you can use the target icon (display) on the toolbar"any process", as indicated in the first picture), drag and drop it into the target window, if the target process is not a window program, then you can use filters to filter it, as shown in the figure:

5.After selecting an entry, the two main areas on the right are the main body we need to analyze, the upper part is the requested data, and the lower part is the response data, as shown in the figure, the following figure is the data in the author's experience process of writing this article:

6.Among them, in the request area"raw"(Raw data) is the most commonly used and the most detailed, generally we want to capture the data from here, and then modify, the other items are a certain kind of data in the analysis request;

7.There are also host, referer, data type, cookies, etc., and the bottom line is the data submitted in this request, and you can see that it is UTF8 encoded.

The tool we use today is a very famous packet capture tool, you can find it by searching for it (or follow me to private message, view sharing, generally the software tools I use in my experience, can be found in the shared network disk), so I don't demonstrate here**, I believe you can easily get it.

In general, the features we commonly use are:

1.To start Pausing the packet capture, by clicking on it"file"->"capture traffic", or press the shortcut key F12 directly;

3.Grab the packets of the specified process, and if the target process has a window, you can use the target icon (display) on the toolbar"any process", as indicated in the first picture), drag and drop it into the target window, if the target process is not a window program, then you can use filters to filter it, as shown in the figure:

After selecting an entry, the two main areas on the right are the main body we need to analyze, the upper part is the requested data, and the lower part is the response data, as shown in the figure, the following figure is the data in the author's experience process of writing this article:

Among them, in the request area"raw"(Raw data) is the most commonly used and the most detailed, generally we want to capture the data from here, and then modify, the other items are a certain kind of data in the analysis request;

There are also host, referer, data type, cookies, etc., and the bottom line is the data submitted in this request, which can be seen to be UTF8 encoded.

So how do you check it? Don't worry, it's easy, Fiddler has got the tools ready for us.

Copy the content you want to decode, and then click on the toolbar"textwizard"to open the codec.

Then let's take a look at the response result of this request, as shown in the figure, from the response, we can see that the status code of the response is 200 ok, the request is successful, and the content of the response is a json, so you can click on the above"json"Check it out: