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Editorial Team
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Asked: 2026-05-20T22:25:13+00:00

I’m wondering if this is possible and how it would be done if it

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I’m wondering if this is possible and how it would be done if it could.

I don’t have any deep understanding of how browsers render web pages, so I’m thinking a browser will download the HTML and JavaScript and start rendering. Is it possible for someone to interrupt rendering, essentially edit/change the HTML and/or JavaScript?

Or perhaps someone could wget all outward-facing files, save them locally, and run them locally.

In my head, it sounds theoretically possible, and I was wondering what this might mean in terms of web security.

Edit

“Who” being a user viewing the web page on their browser, assuming delivery from server to client and back is secure.

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1 Answer

  1. Editorial Team

    Yes, it is possible. I’m using charles for that ( http://www.charlesproxy.com/documentation/tools/map-local/ ) but it can be done using apache/nginx proxy as well.
    You basically have to assume that everything that happens in the browser can be changed by the end user.

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