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3 answers
115 views
Is there a keyboard shortcut to scroll the session list to the currently selected/open session you're working on?

This would be very useful to not have to scroll the session list manually looking for the highlighted session you're on, particularly if you've lost track of whether you're above or below that session as you jump around investigating surrounding/later/earlier sessions for context.

Thanks!
Eric R | Senior Technical Support Engineer
Telerik team
 answered on 28 Apr 2020
1 answer
64 views

I look fiddlercore demo ,there some code I don't understand , why when FiddlerApplication.Startup after , and also CreateProxyEndpoint ?

 

I test it ,if don't CreateProxyEndpoint ,the fiddler can still work

Eric R | Senior Technical Support Engineer
Telerik team
 answered on 28 Apr 2020
1 answer
229 views

Hello, I'm a new user.

I've been using the hostname replacement using fiddler.

I was trying to update my Qt installation but the maintenance tool was defaulting downloads from slow mirrors. I was changing the hostname to faster mirrors.
The hostname replacement was working and the download speeds are improved (task manager shows Fiddler maxing the download speeds).

The problem is fiddler keeps spamming the link (see first attached picture) and even if one of them finishes downloading, it says that the session was aborted so the qt maintenance tool doesn't get the requested file and it gets stuck in a loop.

This only happens when it's downloading a big file. Small files (<10MB) gets confirmed to be downloaded in the qt maintenance tool.

I think it is because since the smaller files downloads right away, it gets registered as a response on the qt maintenance tool before it requests for another but since the bigger files are slower to download, the tool doesn't get a response right away so it spams requests, when the earlier requests finish downloading, the tool doesn't accept it. So the result is Fiddler keeps spamming requests even if the earlier request finish downloading.

How do I fix this?

Clarence
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Rank 1
 answered on 25 Apr 2020
2 answers
2.1K+ views
01.
if(oSession.HostnameIs("exemple.com")&& oSession.uriContains("login")) {
02.    // Color this response, so we can spot it in Fiddler
03.    oSession["ui-backcolor"] = "lime";
04. 
05.    // Convert the request body into a string
06.    var oBody = System.Text.Encoding.UTF8.GetString(oSession.responseBodyBytes);
07. 
08.    // Convert the text into a JSON object
09.    var j = Fiddler.WebFormats.JSON.JsonDecode(oBody);
10. 
11.    // Inside of our dictionary, we have an array (ArrayList) called "placements"
12.    var testObject = j.JSONObject["teste"];
13.    /* Change this to different values, e.g. "0.0", 0.0, null, "", etc. */
14.     
15.                   j.JSONObject["auth"]="true";
16.                   j.JSONObject["user"]="false";
17.     
18. 
19.    // Convert back to a byte array
20.    var modBytes = Fiddler.WebFormats.JSON.JsonEncode(j.JSONObject);
21. 
22.    // Convert json to bytes, storing the bytes in request body
23.    var mod = System.Text.Encoding.UTF8.GetBytes(modBytes);
24.    oSession.ResponseBody = mod;
25. 
26. 
27. 
28.}
Eric R | Senior Technical Support Engineer
Telerik team
 answered on 24 Apr 2020
2 answers
298 views

Hi,

I'm running Fiddler for .Net 4.6.1 v5.0.20202.18177

In the Fiddler options dialog I have "Caputre HTTPS CONNECTs", and "Decrypt HTTPS traffic" enabled"

I have Postman installed on the same machine, with Fiddler set as its proxy. I make a https call to a cloud web service from Postman. I see a session row in Fiddler with a Host of "Tunnel to" that hits the URL of the web service.

If I select Help\Troubleshoot from Fiddler then it also shows the "real" session with the request and response payloads. If I right-click the "real" (filtered) session and select "Comment" then the following is displayed, repeated many times:

"Hidden due to FTS>Path"

I'm trying to prevent this "real" session being filtered. I've checked the filters at the bottom left of the Fiddler screen and none of them match. I don't have the filters tab enabled. 

How can I prevent my "real" session from being filtered?

Thanks,

Rob.

 

rob
Top achievements
Rank 1
 answered on 24 Apr 2020
1 answer
941 views

I updated fiddler to 5.0.20202.18177 and I constantly get 504 errors when hitting known working end points now. In the previous versions I did not. I also have a number of unit tests that hit these end points and they work every time I run them. So I know the server is working.

Any help or a method to roll back my version of fiddler would be great!

Eric R | Senior Technical Support Engineer
Telerik team
 answered on 24 Apr 2020
7 answers
563 views

I remember that the Fiddler ScriptEditor in JScript provided IntelliSense years ago.

Installing Fiddler now to a new machine, having C# selected as script language, IntelliSense seems to have gone.

It's utterly hard to program rules without being able to search and find appropriate properties of the oSession object.

How can I enable IntelliSense for the C# ScriptEditor?

Eric R | Senior Technical Support Engineer
Telerik team
 answered on 23 Apr 2020
4 answers
677 views

How to get rid of this error?

Everything seems normal until I use CCleaner to clean up something. I let it run, scan and delete automatically and after that, I didn't check again.

One day later, when I access any sites with HTTPS, everything turns into this error and prevent me from access those sites.

Google Chrome says: Your connection is not private, NET::ERR_CERT_INVALID.

What should I do now?

It seems that I have deleted some files that Fiddler needs?

I found some guides in Google.com, which are related to this error to refer, such as:

https://usefulpcguide.com/16666/your-connection-is-not-private/

Not nothing is useful and help me get rid of it.

Tony
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Rank 2
 answered on 21 Apr 2020
1 answer
150 views
Need Help getting fiddler up and running on MAC
Eric R | Senior Technical Support Engineer
Telerik team
 answered on 20 Apr 2020
1 answer
91 views
Super new and trying to find a way to automatically raise a number by 1 then execute and repeat? Example change "Id":"1" to "Id":"2" then execute and change 2 to 3 and so on if that makes sense. 
Eric R | Senior Technical Support Engineer
Telerik team
 answered on 16 Apr 2020
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