What is the best way to eliminate an Injected Script from my system?

I have added a script to my GWT Application using ScriptInjector

   ScriptInjector.fromUrl("js/jquery-1.7.2.min.js").setWindow(ScriptInjector.TOP_WINDOW).setCallback(new Callback<Void, Exception>()
        {

            @Override
            public void onSuccess(Void paramT)
            {
                ScriptInjector.fromUrl("js/viewer-2.2.1/WebViewer.min.js").setWindow(ScriptInjector.TOP_WINDOW).setCallback(new Callback<Void, Exception>()
                {

                    @Override
                    public void onSuccess(Void paramT)
                    {
                        ScriptInjector.fromString(getCreateInjection()).setWindow(ScriptInjector.TOP_WINDOW).setRemoveTag(false).inject();
                    }....

Now, is there a way in the application to remove this script that I injected earlier?

javascriptgwt

Answer №1

Basically, because of the way JavaScript functions, it is possible to achieve what you want by removing the script tag, but you may not be able to fully undo the effects of the code that has already run. Once the code is executed, you can't reverse it completely. While you can remove the script tag and possibly delete some created functions or types, any active code will continue to affect your page until it completes its task.

Instead, you should focus on understanding the JavaScript script utilized and look for ways to manage its impact like removing modified elements.

--

Both fromUrl and fromString variations rely on an inject() function, which results in a JavaScriptObject. This object represents the actual <script> tag - converting it to an Element and then using removeFromParent() will eliminate the script tag itself, but any alterations caused by the script will remain.

Another option could involve executing the script within its own <iframe> and carefully integrating it into the main page before removing the iframe. While this method simplifies eliminating exported functions, it won't reverse other side effects. To execute this approach successfully, a thorough understanding of the script's functionality is required - ideally supported by documentation or further clarification on your specific objective.

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

Preventing navigation without using the <Prompt> component in React Router DOM V6

I have recently discovered that in react-router-dom v5, it was possible to utilize the <Prompt> component to prompt the user before a page transition occurs, allowing them to prevent it. However, this feature has been removed in v6 with plans for a m ...

javascriptreactjsreact-router-dompage-transition

Enhance the v-autocomplete dropdown with a personalized touch by adding a custom

Currently utilizing the v-autocomplete component from Vuetify, and I am interested in incorporating a custom element into its dropdown menu. You can see the specific part I want to add highlighted with a red arrow in this screenshot: This is the current s ...

javascripthtmlvue.jsautocompletevuetify.js

How to transform a nested string into a JSON object using JavaScript

I am trying to manipulate a nested query string in JavaScript. The string looks like this: var str = "( ( Sentence starts with any of null AND Sentence starts with any of null ) AND Sentence starts with any of null )" I want to split the string at the &a ...

javascriptjson

Ways to merge several getServerSideProps functions

Within my project, I have two important pages: index.js and other.js. In index.js, there exists a crucial method known as getServerSideProps: export async function getServerSideProps(context) { //code here } The challenge arises when I realize that I ...

javascriptreactjsnext.js

A comprehensive guide on troubleshooting the toggleComplete functionality for React Todo applications

When you click on an item in the to-do list, it should show a strikethrough to indicate completion. However, when I try clicking on an item, nothing happens. Here is my toggleComplete function and where I am attempting to implement it: class ToDoForm exten ...

javascriptreactjs

Bower downloads the identical package but arranges it in a distinct file structure

We operate a TeamCity build server that is utilizing three different buildusers all configured similarly. We have integrated an angular/grunt project using yeoman Update 6 Noted an issue with bower https://github.com/bower/bower/issues/1709 Why does bow ...

javascriptgruntjsnpmboweryeoman-generator-angular

The sequence of data and the final event triggered by http.createServer

const server = http.createServer(async (request, response) => { if (request.method === "POST") { var data = ""; request .on("data", async (chunk) => { console.log("1"); data + ...

javascriptnode.js

When using the `Node fs.readstream()` function, the output includes `<Buffer 3c 3f 78 6d 6c ...>`, which is not in a readable

Handling a large XML file (~1.5gb) in Node Js by streaming it to process data in chunks has proven challenging due to the complexity of the documentation. A simple code snippet I am currently using is: var fs = require('fs'); var stream = fs.c ...

javascriptnode.jsstreamhexnode.js-stream

The Ajax search box displays results from the most recent query

Hey there, I need some assistance with a request: var searchResults = new Array(); var ajaxRequest = function (value, type) { if (typeof(type) === "undefined") type = "default"; var ajaxData = { "title" : value, "limit" : ...

javascriptjqueryajax

Navigating through div elements using arrow keys in Vue

Trying to navigate through div elements using arrow keys is proving to be a challenge for me. I have successfully achieved it in JavaScript, but I am facing difficulties doing it the "vue way". Although there should be no differences, it simply does not wo ...

javascriptvue.jsvuejs2

Vue.js problem with conditional rendering using v-if

I'm struggling to grasp the concept behind how v-if functions. My goal is to dynamically hide buttons in the navigation bar based on the user's authentication status and current page. Specifically, I want the "My Account" button to be displayed w ...

javascriptvue.jsmethodsvuejs3logical-operators

What is the process for importing a JSON5 file in Typescript, just like you would with a regular JSON file?

I am looking to import a JSON5 file into a JavaScript object similar to how one can import a JSON file using [import config from '../config.json']. When hovering over, this message is displayed but it's clearly visible. Cannot find module & ...

javascripttypescriptecmascript-6json5

A guide on updating an item in a basic JavaScript file with Node.js

This query pertains to Workbox and Webpack, but no prior knowledge of these libraries is necessary. Background Information (Optional) Currently using the InjectManifest plugin from Workbox 4.3.1 (workbox-webpack-plugin). While this version provides the o ...

javascriptnode.jswebpackfsworkbox

Node/Express: The $ symbol is failing to recognize the input for PORT 8080

What steps should I follow to run my PORT on 8080? Is it necessary to install any dependencies? const app = require('express')(); const PORT = 8080; app.listen( PORT, () => console.log('It's now running on http://localhost:$ ...

javascriptnode.jsexpressvisual-studio-codeserver

Step-by-step guide on implementing a real-time data array counter in React js

I am attempting to create a function that continuously generates new data arrays with an increasing counter. Each second, a new array should be added with the next number in sequence. data={[ { x: 1, y: 1 }, { x: 2, y: 2 }, ...

javascriptreactjsarraysdataset

The clear function in the template slot of Vue multiselect is not functioning properly

I decided to incorporate the asynchronous select feature found in the documentation for my project. This feature allows me to easily remove a selected value by clicking on 'X'. Below is a snippet of the general component that I use across variou ...

javascriptcssvue.jsvue-multiselect

The URL overwrites the Ajax transfer type

When making an ajax call using a generated URL from a paginator script, I encountered an issue. The URL was dynamically created as shown below: "http://192.168.1.23:8000/pricing/0/999/null/?page=9" A similar link is generated on the server: "https://xxx ...

javascriptphpajaxlaravel

Incorporating EJS Template Body Parameters into AWS Lambda's Handler.js Using Serverless.yml

I have a scenario where I am trying to embed an EJS template named 'ui.ejs' into my handler.js file. The goal is to extract URL query parameters, then pass them to a function called 'ui.js' to retrieve data, which will then be displayed ...

javascriptnode.jsamazon-web-servicesaws-lambdaserverless-framework

I have been attempting to implement validation in JQuery, but it doesn't seem to be functioning correctly

Can someone assist me with adding validation in jQuery? I'm stuck and need help solving this problem. $(function(){ $("#btn").click(function(){ var b=prompt("Enter your link"); $("a").attr("href",b); if($("b").v ...

javascriptjqueryhtmlcss

Node.js throws an error with the message "Unexpected token *" while utilizing the robe

Currently, I'm working on a Node.js application where I'm attempting to utilize the node module named robe. Unfortunately, I encountered an error message when trying to launch the app: function* promiseToGenerator(promise) { ^ Error l ...

javascriptnode.jsnpm