I don't know if this is the right place to ask such a question, but I want to download an online video of my graduation. I tried to look up the source code and in inspect option in google chrome but I didn't succeed. Is there any way to download the video?
This page uses HTTP Live Streaming deploying the M3U8 file format. After obtaining the link to the M3U8 file, it can be downloaded and converted with other software libaries also supporting HLS (e.g. VLC media player or ffmpeg ffmpeg -i "https://….m3u8?…" output.mp4).
You can extract the .m3u8 URL using Chrome Dev Tools, which allow you to browse loaded resources in your browser:
Log network activity
Reload the page. The Network panel logs all network activity in the Network Log.
– Documentation › Chrome DevTools › Network
Once opened with F12, you can press F5 to reload all resources and use the search option to filter for m3u8:
Environment:
Ubuntu 18.04.6 Desktop 64-bit
Google Chrome 98.0.4758.80 (Official Build) (64-bit)
FireFox 92.0 (64-bit)
What I did:
Install apache2 (so it starts a default local website that I can access at http://localhost).
Edit /etc/hosts and add the following entries:
127.0.0.1 app
127.0.0.1 app2
127.0.0.1 napp
On Google Chrome, open the following URIs:
http://localhost: Successfully opened the "Apache2 Ubuntu Default Page" as an insecure domain.
http://app: Got redirected to https://app automatically and returned the error "This site can’t be reached"
http://app2: Same as http://localhost.
http://napp: Same as http://localhost.
On FireFox, open the following URIs:
http://localhost: Successfully opened the "Apache2 Ubuntu Default Page" as an insecure domain.
http://app: Same as http://localhost.
http://app2: Same as http://localhost.
http://napp: Same as http://localhost.
I searched on Google and saw posts that talk about the automatic redirect from http to https, such as How to Stop Chrome from Automatically Redirecting to https. I followed the posts by deleting the security policy for the domain app and clearing the browser cache of all the time, but I still got redirected from http://app to https://app. (In fact, I was using a freshly installed OS and Google Chrome and had never opened any websites before doing the test.)
Why does Google Chrome automatically redirect http://app to https://app but doesn't do that to http://app2 or http://napp?
I also learned that Chrome & Firefox now force .dev domains to HTTPS via preloaded HSTS and Google rolls out .app domains with built‑in HTTPS. So it looks like the browsers are using preloaded/builtin HSTS to enforce the use of HTTPS. But does http://app count as a case of .app domain?
I think it should be some browser settings because FireFox didn't do the redirection.
Simply put, Chrome uses a HSTS preload list to automatically redirect certain domains from HTTP to HTTPS. This preload list is "a list of sites that are hardcoded into Chrome as being HTTPS only." app is already included into this preload list, as shown by this link: "Status: app is currently preloaded." Therefore, when http://app is entered, Chrome automatically redirects it to https://app. But app2 and napp are not included, so http://app2 and http://napp are untouched.
I wrote the article Why does Google Chrome automatically redirect http://app to https://app but doesn't do that to http://app2 or http://napp? to explain this with more details and other related links.
The Network tab in the Google Chrome Developer Tools window shows almost all http requests made, but does not seem to capture anything when the http request results in a file being downloaded.
How can I capture download requests in Google Chrome?
I am sure that your file download is happening by opening a new window. Network tab of developer tools only captures the request of current tab.
For example, following link will download the file but it will not appear in the network tab.
Click Here to Download file
Similar type of things can be done using javascript using (window.open, dynamic hyperlink/iframe), which will not appear in the network tab.
Various Javascript approach you can check here
I have observed similar behaviour in my past.
You cane check the chrome://net-internals in older version of chrome and chrome://net-export/ in the newer version of chrome to monitor any type of request being made by any instance/tab of chrome.
Note: You can check the internal events of chrome by typing chrome://net-export/ in the url box of chrome.
I have faced similar issue, and here's how I solved it.
Issue:
Debug an anchor link that download file upon clicking it.
Debugging Process:
Steps
Go to chrome://settings/content/automaticDownloads?search=download and disable auto download
Open chrome dev tools, Settings -> Global -> Auto-open DevTools for popup
Open chrome dev tools, Settings -> Console -> Preserve log upon navigation
I hope that helps.
This works without changing any settings of Chrome for a single download-request. It however does not automatically display all download-requests triggered in a different tab or window.
Trigger the download in the GUI.
Open Chrome's download history (chrome://downloads/).
Right-click your download and Copy link address.
Open DevTools, paste the link into the address bar of the corresopnding Chrome tab and execute it.
The download-request shows in the DevTools.
You can use Fiddler for a more grainy look into your network traffic:
https://www.telerik.com/fiddler
*I don't work for fiddler
What do you mean by capture?
If you meant that nothing showed up in preview tab or in response tab, it's because the response is the actual file being downloaded.
I've recently tried downloading Oracle JDK 11 with dev-tools open in network tab and here is what I got:
I have no particular configuration in this version of Chrome (Versione 71.0.3578.98 (Build ufficiale) (a 64 bit))
As #jlvaquero said, if you're trying to get as much details as possibile, try WireShark on your own local pc.
I can see it in my case by downloading a document from google drive and limit download speed to 3G.
First step : Open with f12 the programmer toolbar.
Step Two : Go to the networking tab and locate the video in question. To help filter by clicking on media.
Step Three : If the video has no protection you can right click, click open on a new tab and download with crtl + s. If this does not work is because the video has parameters to prevent it from doing so. In that case right click again, go to the COPY session and then click copy as cURL.
Step Four : Go to your linux terminal (If you use windows turn around), if you don't have curl installed type sudo apt install curl and then paste the copied CURL command from the developer bar.
Step 5 : Before executing the command you need to add at the end of it --output video.mp4 --insecure as it is a binary. The insecure parameter is if you have problem with certificate. Wait for the download to complete and be happy!
Obs: This link can help you: https://www.hanselman.com/blog/HowToDownloadEmbeddedVideosWithF12ToolsInYourBrowser.aspx
Google Chrome has been updated to support downloads in the Network Tab
This question was asked in February of 2018, and at the time Google Chrome did not support downloads in the Network tab.
I have verified this by downloading the 64.0.3282.140 build of Google Chrome.
And then attempted to download Spotify as an example and found no event appear in the network tab.
Any Google Chrome version released in 2019 or later will capture all download requests in the Network tab.
I am testing notifications on chrome and firefox ofter 5 sec idle. In Firefox I get showed notification. In chrome after requestPermission() variable result inside this function changed. But when I try to show notification after timeout Notification.permission === 'default' and permissions not showing. OS - ubuntu. What is wrong in chrome? Why permission is default, not granted?
https://drive.google.com/file/d/0ByQHLazSsLs-TXZFZXB6TWVsa3M/view?usp=sharing
I used index.html without any project and chrome didn't save url in settings as url for applying notifications. I started django project with index.html and save url localhost:8000 to chrome settings. Working!
I am using a web page which has a microphone incorporated, same like "Search by voice" feature of Google search.
In Developers tools -> Network I see that a .wav file is created which is sent to the engine for processing.
dev tools -> network:
Is there any way to manually send .wav files to Chrome for processing?(simulating audio recording)