CODEWITHSUNDEEP
cssdom-manipulationbrowser-extension
hcotta
hcotta

Reputation: 423

How to prevent style injection by third party browser extensions on a web app

As I mentioned in this question, I noticed Dashlane's Google Chrome extension modifying the styles on my web app when using their auto-fill functionality.

Setting the CSS properties of interest as !important prevented the injected styles from being effectively displayed. But I was wandering if there is a way to prevent these extensions from injecting styles on existing elements on the page in the first place.

I think is important to point out the word 'existing' because some of these extensions might have to add and manipulate their own elements in order to work properly. But I don't want them interfering with anything that I've created.

Upvotes: 3

Views: 465

Answers (1)

Shuktika Mahanty
Shuktika Mahanty

Reputation: 1

You can mitigate style injection by third-party extensions using Shadow DOM to encapsulate your web components. Shadow DOM creates a scoped boundary for styles, preventing external CSS from affecting your app's elements. While not foolproof, it adds a layer of protection against unwanted style modifications.

Upvotes: 0

Related Questions