How to customize XMLHttpRequest in Firefox's WebExtension

Recently, I've been attempting to override the XMLHttpRequest.protype.open method within Firefox's WebExtension environment. My current approach involves the following code snippet written in a content script:

var oldOpen = XMLHttpRequest.prototype.open;
XMLHttpRequest.prototype.open = function (method, url, async, user, pass) {
    console.log("url :"+url+"\n method: "+method);
    oldOpen.apply(this,arguments);
};

Unfortunately, it seems that this code isn't functioning as intended. If you have any insights on how to successfully override the XMLHttpRequest.prototype.open method, your input would be greatly appreciated. Thank you!

Answer №1

If your scripts need to make XHR requests, they won't have direct access to the content script. Instead, your content script must insert a script containing your code into the page. This inserted script can then communicate with the content script through messages. For guidance on inserting a script into a page, check out this link: Inserting code into the page context using a content script. And for information on communicating between page scripts and content scripts, refer to this resource: https://developer.chrome.com/extensions/content_scripts (specifically the section on "Communication with the embedding page")

Similar questions

If you have not found the answer to your question or you are interested in this topic, then look at other similar questions below or use the search

Is there a way to use a commandButton to dynamically update the src URL in a ui:include tag using

Creating a template using JSF involves including another JSF file within a div in the main layout. Here is an example: <h:panelGroup id="mainCenterBox" styleClass="mainCenterBox" layout="block"> <ui:include id="centerView" src="messageBoa ...

Issue with EaselJS: mouse events are no longer functional

I'm currently working on adding a touch animation using the EaselJs library. Interestingly, when I load an image from a local folder, all mouse events work as expected, such as onPress. However, things take a different turn when I opt to use an imag ...

What happens if a web service is not triggered when the return type is modified in the signature?

After creating an asp.net web service, I integrated it using jquery ajax. The specific jquery ajax method used is as follows: $.ajax( { type: "POST", url: "../../Search/Address.aspx/Search2", contentType: "application/jso ...

Tips for adding event listeners to dynamically-loaded content using AJAX

I need help with the following code snippet: $("#contantainer").load("some_page.txt"); Inside some_page.txt, I have the following content: <div class="nav"> <ul id="nav_ul"> <li><a class="nav_a" href="#home" id="home"> ...

HTML5 Advanced API Integration with Vimeo

After setting up my Vimeo account and app for video upload, I received approval. However, when I attempted to upload a video to the Vimeo server, I encountered difficulties. I am struggling to understand how OAuth functions. Please see below for the co ...

Strategies for eliminating _next folder from file path within the build directory of Next Js

Is there a way to eliminate "_next" from the path in the build folder for Next Js version 13.2.4? For reference, here is an example: We would greatly appreciate any assistance on this matter. ...

vue.js: Modifying information through watcher function

Here is the code I am currently using: export default { name: '...', props: ['user'], data() { return { userName: this.user.name } }, watch: { user: (_user) => { th ...

Can JavaScript's Gamepad API be used to register a custom game controller?

Background Story Working on a virtual reality app with A-frame to showcase VR gadgets. Custom controllers connect via websocket/bluetooth and we want them compatible with tracked-controls. These components use Gamepad API for model positioning and are fri ...

Accessed a property that is not defined on the instance during rendering

One of the components I'm working on displays data that is defined in the component's state. To access this data, I created a getter: export default createStore({ state: { foo: true, }, getters: { getFoo: state => state.fo ...

Is there a way to prevent the back button from functioning in my web browser?

How can I prevent the back button from being used on my webpage? Can you provide a list of possible methods to achieve this? if($data->num_rows > 0){ while($row = $data->fetch_assoc()){ header('Location:../cashier.php&apo ...

Tips for establishing communication between a React Native webView and a React web application

I am currently working on establishing communication between a webView in react-native and a web-app created with React-360 (and React). I am utilizing the react-native-webview library and following a guide for creating this communication. You can find the ...

Why does IntelliJ IDEA 2016 show an error for using the [ngSwitch] attribute in this Angular2 template?

Every time I run precommit inspections, I receive a barrage of warnings even though everything seems to be functioning properly. The warnings include: Warning:(8, 58) Attribute [ngSwitch] is not allowed here Warning:(9, 42) Attribute [attr.for] is not all ...

Accessing a Kendo Grid instance within an Angular directive

Continuing from the previous question, which can be found here, I have an additional query that I felt warranted a separate post. The link provided above demonstrates how to obtain a grid instance in Angular, credit to Lars for that. Building upon the ex ...

Encountering a getMacChromiumEdgeDriverArchitecture error while using wdio/selenium-standalone-service

As I continue to learn WebDriverIO and adjust to MacOS, I encountered an error while trying to execute a spec file using "npm run test:wdio". The error message is as follows: > [email protected] test:wdio /Users/vinicius.correia/Desktop/dev/automat ...

Tips for Avoiding Database Overflow Due to Excessive AJAX Spam Requests

Let's consider a simple scenario: A create album button is used to input album data into the database. I disable the button while the request is being processed, then re-enable it upon completion. Once the processing is finished, ...

Is there a proper method for populating an HTML text with values from a form?

As a newcomer, I could really use some guidance here :) I'm trying to populate text with various words, numbers, and calculation results from a form. This is my initial attempt for just one field/word, and it appears to be functioning correctly. Do y ...

Exploring Protractor testing with Bootstrap modals

I'm having an issue testing a bootstrap modal. Here's the scenario: Click on a button to display the modal The modal body has a list of buttons When I click on one of them, it doesn't do anything My Protractor code snippet: element(by. ...

Converting a functional component into a class-based component

I am in the process of converting a functional based Component to a class-based Component and creating a PrivateAuth Component. Here is the original PrivateAuth functional Component. function PrivateRoute({ component: Component, ...rest }) { return ( ...

After utilizing Geolocation, the input fields in Ionic/Angular JS are failing to update accurately

Currently, I am in the process of developing a new App using Ionic and Angular JS. Specifically, in one of the app tabs, I am utilizing geolocation to populate four fields (street name, street number, latitude, and longitude). Below is the snippet of my c ...

Tips for removing the default hover and click effects from a Material-UI CardActionArea

Check out the card sample with a lizard photo on https://material-ui.com/components/cards. When you hover over the cardActionArea, it will get darker or lighter based on the theme. Clicking on the card will make the picture change its brightness relative ...