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Debugging client side JS can be a pain because every-time you change the URL (including a change in the params used or param values) you need to **reset the breakpoint and reload the page**.
If you place the line `debugger;` inside a JS file, when the **browser** executes the JS it will **stop** the **debugger** in that place. Therefore, one way to set constant breakpoints would be to **download all the files locally and change set breakpoints in the JS code**.
Browser overrides allows to have a local copy of the code that is going to be executed and execute that one instead of the one from the remote server.\
You can **access the overrides** in "Dev Tools" --> "Sources" --> "Overrides".
You need to **create a local empty folder to be used to store the overrides**, so just create a new local folder and set is as override in that page.
Then, in "Dev Tools" --> "Sources" **select the file** you want to override and with **right click select "Save for overrides"**.
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This will **copy the JS file locally** and you will be able to **modify that copy in the browser**. So just add the **`debugger;`** command wherever you want, **save** the change and **reload** the page, and every-time you access that web page **your local JS copy is going to be loaded** and your debugger command maintained in its place:
* Do you work in a **cybersecurity company**? Do you want to see your **company advertised in HackTricks**? or do you want to have access to the **latest version of the PEASS or download HackTricks in PDF**? Check the [**SUBSCRIPTION PLANS**](https://github.com/sponsors/carlospolop)!
* Discover [**The PEASS Family**](https://opensea.io/collection/the-peass-family), our collection of exclusive [**NFTs**](https://opensea.io/collection/the-peass-family)
* Get the [**official PEASS & HackTricks swag**](https://peass.creator-spring.com)
* **Join the** [**💬**](https://emojipedia.org/speech-balloon/) [**Discord group**](https://discord.gg/hRep4RUj7f) or the [**telegram group**](https://t.me/peass) or **follow** me on **Twitter** [**🐦**](https://github.com/carlospolop/hacktricks/tree/7af18b62b3bdc423e11444677a6a73d4043511e9/\[https:/emojipedia.org/bird/README.md)[**@carlospolopm**](https://twitter.com/carlospolopm)**.**
* **Share your hacking tricks by submitting PRs to the** [**hacktricks github repo**](https://github.com/carlospolop/hacktricks)**.**
