Secure HTML / CSS for JavaScript? I am unable to modify certain attributes during runtime

Due to ongoing discussions about blog colors for business purposes, we are looking to provide users with a "tool" (for those who are tech-savvy) to experiment with colors themselves.

Our blog is a basic Wordpress site with various plugins (such as Google Calendar embedded with an iframe).

We encourage users to manipulate the address bar with commands like:

javascript:document.getElementById("reply-title").style.cssText='color:#f0555f';  void 0

While this successfully changes the text color of the selected element (the "leave a comment" text), it doesn't seem to work for certain elements, particularly those within the Google Calendar iframe (such as the date displayed on top of the calendar):

javascript:document.getElementById("currentDate1").style.cssText='color:#f0555f';  void 0

Could it be that elements within the iframe are somehow protected from being altered by JavaScript?

Answer №1

Actually, there is a more efficient way to do this.

If you are using Chrome, Firefox, Internet Explorer, Opera, or Safari, you can easily inspect the DOM by right-clicking on an element on the page.

This also applies to viewing and modifying the CSS for better user-friendliness, even for developers.

Keep in mind that items within an iFrame are not protected from this level of inspection.

For Chrome users, check out Chrome DevTools.

Additionally, you can try pressing CTRL+ALT+RightClick if access is blocked by others. ;)

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