iOS Simulators and Charles
10 Aug 2022, updated 03 Nov 2022 The easiest way to setup your simulator is to treat it like a physical iOS device! There are 2 slight differences you need to be aware of. Once you’re familiar with these variances, continue to the iOS device setup instructions HERE.
Zscaler and Charles – Common Problems
08 Feb 2022 Here are some common issues that people encounter when using Charles and Zscaler Laptop connection issues Device connection issues Lost internet connection
How Charles Proxy works with Zscaler
01 Feb 2022, updated: 10 Aug 2022 If you have to use Zscaler, for example to access a corporate network, you may run into issues and need to debug your problem. This article gives a high level overview of how the 2 tools work together How the tools work together Charles uses the “External Proxy…
Expired Charles Proxy Root Certificate
29 Dec 2021, updated: 10 Aug 2022 To comply with Apple’s rules regarding MacOS certificate expiry dates, Charles’ root certificates have much shorter expiry dates (read article here). This change came into effect on September 1 2020. From version 4.6 of Charles onwards, new root certs will have a 1 year expiry, instead of the…
Android 11 devices and Charles
07 Jul 2021, updated: 21 Oct 2021 This tutorial will show you how to configure Charles and your Android 11 device so you can view your app’s network traffic in plain text. FYI, the root certificate installation steps are slightly different to older Android versions NOTE: Since Android Nougat (7.1), Google have blocked tools like…
Android Emulators and Charles
30 Jun 2021, updated: 21 Oct 2021 The only slight difference between configuring Charles to work for physical devices and emulators, is the wifi network. Emulators only have 1 available wifi network. All other setup task are the same as for a real physical Android device Android Wi-fi network You will notice that there is…
Rewrite rules – Common Problems
23 Jun 2021, updated: 29 Dec 2021 Rewrite rules are an awesome tool but there are a few gotcha’s you should be aware of when using them. This post might save your future self hours of futile debugging! # Using multiple Rewrite rules # Unescaped characters # Rewrite Rules and the OPTIONS method # Debug…
3 ways to Reduce unwanted network traffic
16 Nov 2021 Other than using the “Filter” field, there are 3 other ways to reduce the amount traffic your Charles sessions captures Recording Settings Exclude traffic from being recorded Add the URL(s) to the “Exclude” tab of the “Recording Settings…” feature Proxy -> Recording Settings -> Exclude Focused Host Focusing on specific hosts As…
Advanced Repeat
09 Nov 2020, updated: 04 Jan 2021 The Advanced Repeat feature lets you automatically hit endpoints at predefined intervals. You can also to add delays between each iteration. In this tutorial we are going to demonstrate 2 use cases for this feature: Open Advanced Repeat settings Right click the endpoint and select “Advanced Repeat” from…
Firefox and Charles
02 Nov 2020, updated: 04 Jan 2021 If you want to view decrypted Firefox network traffic in Charles, you need to perform 1 extra task when compared to Chrome and Safari. You need to import the Charles root cert on your machine into Firefox. In this example, I will proxy traffic from the NY Times…
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