Call javascript function from chrome extension

Tag: javascriptgoogle-chrome-extension. I have extracted username and password main. So far, the popup. I want to call the function in popup. Thank you very much. If you don't "override" the loadComponent method then the default component loader's loadComponent will be invoked which only calls the loadViewModel if you've provided a viewModel config option. In your getConfig method you are returning a config with require which means that your require.

call javascript function from chrome extension

This code: if sortedLetters[i]! You cannot store key-value pair in array. Use object to store key-value pair. See comments inline in the code. The handler for each type of event is passed a certain set of arguments. The Catalog of Events has this to say about a "change" event: "change" model, options — when a model's attributes have changed.

So if you say this: this. I don't understand why it would give me two hellos back? Because the first entry in the array is the overall match for the expression, which is then followed by the content of any capture groups the expression defines.

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Since the expression defines one capture group, you get back Create a separate file called app. The only purpose of this file would be to run the server. You'll also need to export your app object from server. So, your server.

Two issues: There is a typo in your click listener code, javascript is case sensitive, infowindow and infoWindow are different objects, so you are not setting the position of the infowindow correctly. If you want Javascript is a client-side language.Tag: google-chrome-extension. After reading blogs and some stackoverflow answers while building a chrome extension, I had for some reason thought that we cannot make an ajax call to a REST API hosted on server that comes under another domain than the hosted page.

Is this correct? While developing my extension, I mistakenly made a call from a content script on clicking a button on my extension UI UI is injected into the DOM using content script. I did not ran into any error.

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Everything went smooth. Could it be because the api was on local host? From Chrome XHR documentation :. Regular web pages can use the XMLHttpRequest object to send and receive data from remote servers, but they're limited by the same origin policy. Extensions aren't so limited. An extension can talk to remote servers outside of its origin, as long as it first requests cross-origin permissions.

Furthermore, from the Content Script documentation :. Content scripts can also make cross-site XMLHttpRequests to the same sites as their parent extensions [ MDN has this example as they note, sendAsBinary in the example should It because you're hitting an edge case bug in Google which verifies at run time that the contents inside an extension on disk match what was uploaded to the web store designed to prevent malicious software from spoofing legitimate extensions.

Three known such bugs are: crbug. Use chrome. In case of IDB, all object store creation and manipulation has to happen from inside of onupgradeneeded event handler or after onupgradeneeded is triggered.

If I understood your requirement correctly then you do not want I presume that the issue is all about the context. You're right about it. The file "temp-file. Extension can mess with it - since it is in different context. Run a function from injected I carefully read several sample extensions' source code. Since I set "persistent" to false, the extension is running with Event Page.

call javascript function from chrome extension

Thus my code works by removing onclick from the parameter object of chrome. You can't put javascript code in html file in goolge-chrome-extension. So I'm answering my own question.

Under this license data can be freely used through API with non-commercial or commercial purposes. However, the OpenWeatherMap name must be mentioned as a weather source in a visible First Load Jquery Plugin after you can load your popup.

I could do it using webRequest in chrome extension. I added this code in the background. The issue is that there are 2 "background" pages running. The official background page specified in the manifest file. The tab created by chrome. This means there are 2 message listeners, which is why 2 tabs are opening.With the call method, you can write a method that can be used on different objects.

If a function is not a method of a JavaScript object, it is a function of the global object see previous chapter. In a function definition, this refers to the "owner" of the function.

In the example above, this is the person object that "owns" the fullName function. In other words, this. Read more about the this keyword at JS this Keyword. With callan object can use a method belonging to another object. This example calls the fullName method of person, using it on person1 :. This example calls the fullName method of person, using it on person2 :.

If you want to report an error, or if you want to make a suggestion, do not hesitate to send us an e-mail:. HOW TO. Your message has been sent to W3Schools. W3Schools is optimized for learning, testing, and training. Examples might be simplified to improve reading and basic understanding. Tutorials, references, and examples are constantly reviewed to avoid errors, but we cannot warrant full correctness of all content. While using this site, you agree to have read and accepted our terms of usecookie and privacy policy.

Copyright by Refsnes Data. All Rights Reserved. Powered by W3.It reads the JavaScript that you type into it, evaluates your code, prints out the result of your expressionand then loops back to the first step. This tutorial is designed so that you can open up the demo and try all the workflows yourself. When you physically follow along, you're more likely to remember the workflows later. Figure 2.

This tutorial on the left, and DevTools on the right. When building or debugging a page, it's often useful to run statements in the Console in order to change how the page looks or runs.

Type document. Notice how the text inside the button changes. Figure 3. How the Console looks after evaluating the expression above. Below the code that you evaluated you see "Hello, Console! Recall the 4 steps of REPL: read, evaluate, print, loop. After evaluating your code, a REPL prints the result of the expression. So "Hello, Console! Sometimes, you just want a code playground where you can test some code, or try out new JavaScript features you're not familiar with.

The Console is a perfect place for these kinds of experiments. The Console prints out the result of the expression below your code. Figure 4 below shows how your Console should look after evaluating this expression. Type the following code into the Console. Try typing it out, character-by-character, rather than copy-pasting it. Figure 4.By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.

The dark mode beta is finally here. Change your preferences any time. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. I'd like to make a website that is not part of the chrome plugin but rather just uses some API that the plugin exposes to it. Is this possible and if so, how do I do it? I googled this question and was unable to find anything.

Content Scripts can help you in this case. Learn more. How can I call functions defined in a Chrome Extension from regular websites? Ask Question. Asked 6 years, 6 months ago.

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Active 6 years, 6 months ago. Viewed 7k times. I'm trying to use content scripts but nothing happens. Can someone explain what's wrong here? I don't think that's possible. I think those methods are held securely. With that said, your plugin might be able to inject JS from the plugin into the loaded window, at which point you would be able to access it. It's what, I assume, GreaseMonkey does in some cases.

Yoda I think this may be what I need. So instead of writing my javascript functions that I want the page to use in the extension pages, I need to put them in the content-scripts page. If the extension wants to send data to the content-script, I just need to pass it via a message. Do content-scripts run in the background?

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How we captured AJAX requests from a website tab with a Chrome Extension

Siddharth Pandey Siddharth Pandey 3, 1 1 gold badge 24 24 silver badges 52 52 bronze badges. Thanks I'll try this! I updated my question with some code I tried but it did not work.Due to this time sink, we decided to build a Chrome Extension to make capturing and debugging these AJAX requests and responses from any website real easy.

It seemed to be the most natural place to capture the data. See the issue here on Chromium. While we were surprised by the lack of a response body getters, we now understand a possible reason why most other extensions do not capture the responses.

call javascript function from chrome extension

Our requirement was to capture the response so that they could be shared with team members. Without responses, debug would be painful and resolving issues would be slow. From the listener callbacks, I can get the event target, which is the XmlHttpRequest object itself. The object has interfaces to get the HTTP response but not the original request.

To truly monitor all the data i. The monkey patch allows us to log the data. Now, I can simply add addEventListener 'load', event to capture the response data. There are a few resources on the web such as this article explaining how to monkey patch. With code ready for monkey patching, we have to execute it. However, the code executed by executeScript is executed in a different context than the code on the webpage, which is where the AJAX calls are made.

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To learn more about how execution environment works, see this video on content scripts. Due to the isolated context, I had to take a different approach to successfully monkey patch the website.

I had to use chrome. There are several ways to add the code into the script tag. Since we also wanted to add some nice UI elements, we decided to put the monkey patch code and the UI related code into a script file, which the resourceUrl links to.

More information on Web Accessible Resources. Since the code is running as part of the web page, the UI we generated can be impacted by the CSS that is already on the page. However, the CSS leaking still can happen on some websites. Content Security Policies is another issue. If content-src is set to be very strict such as on GitHub. Since we wanted to log and store the API calls to be retrieved from shareable workspace links on ApiRequest. This allows the HTTP trace to be saved for days as a reference during later debug.

The Chrome Extension execution environment is not fully subject to that restriction. There is a solution to modify the Content Security Policy which will be posted as a separate article.By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. The dark mode beta is finally here.

call javascript function from chrome extension

Change your preferences any time. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. Right now I am working on a chrome extension. I have an extension background script that uses a function to open new tabs in the browser to complete different 'tasks'. The function uses variables obtained from an api to decide the tab url and at what time to open it, etc.

As you can see, I try to console. However, this does not work the way I intended. Is there a way I can pass the var5 and var6 variables through the function to the new tab? This is one of the more confusing aspects of extensions. So the callback you pass as the last parameter also runs in the background, to run javascript in a certain tab, you can use.

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Learn more. How to send JavaScript to specific tab in Chrome Extension? Ask Question.

From content scripts, can I make an ajax call to a REST API on hosted on my server?

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