93 questions
0
votes
1
answer
29
views
Custom Protocol Handler for Isolated Web App Not Working After ChromeOS Update (May be)
Since the ChromeOS update on September 25, 2025 (not sure if this is the cause), my custom protocol handlers (web+collab:// and collab://) for an Isolated Web App (IWA) have stopped functioning.
...
- 670
0
votes
1
answer
33
views
Manipulate %1 parameter in Registry Protocol Handler
In a web application we have links that have to be opened in another application. The idea now is to register a specific protocol handler to catch these links and send them to the target application.
...
0
votes
0
answers
58
views
PWA mailto protocol_handlers works only first time in Chrome and Edge Browser
After installing Chrome/Edge app by clicking on Install App.
When I click any mailto: link anywhere on any different web page, windows open dialog box correctly asks for the Chrome first time. Windows ...
- 40.1k
0
votes
1
answer
109
views
Is there a way to reset window.launchQueue?
The PWA I am trying to build retriggers the window.launchQueue-Consumer every time the App is reloaded.
I am trying to set up a Angular PWA that can handle links with the tel-Protocol. I've been ...
1
vote
2
answers
2k
views
What is the recommended technique for calling an async function within a tauri protocol handler?
In order to call an async function within a Tauri protocol handler I'm successfully using futures::executor::block_on as described in the following SO answer. Link: https://stackoverflow.com/a/...
- 375
1
vote
0
answers
230
views
How to handle `tel:` protocol in electron app
I want to handle tel:* links in my electron application but I can't see my developing application in the list of opener apps after clicking this type of links.
protocol.handle('tel', (request) => {
...
- 3,925
1
vote
0
answers
703
views
How can I tell from what application a URL my program handles was opened in Windows 10?
I have implemented a basic Python program that handles HTTP/HTTPS protocol links using the registry details here, and set it as my default browser.
This functions; when clicking a link in an ...
- 123
-1
votes
1
answer
658
views
Open a .docx document using desktop word
We get .docx documents from a backend server. The users downloads them to their local machine, edits them jusing MS Word/Excel/... and uploads them back.
Is it possible to make angular open the ...
- 710
1
vote
1
answer
2k
views
Office protocol handler works with Office 2019, but not with Office 2016
On an Intranet web page, I have a link to an Excel document that resides on a network drive, like so:
ms-excel:ofv|u|file:///N:/folder/file.xlsx
This is an office protocol handler described here.
On ...
- 158
3
votes
1
answer
1k
views
Is there a way to detect if the browser has a mailto protocol handler set?
I have a site that dynamically builds a mailto url which it then opens in a new tab/window, using window.open().
window.open("mailto:" + encodeURIComponent(r["to"]));
I'm testing ...
- 5,555
0
votes
1
answer
2k
views
Why doesn't Firefox wait for WebSocket connection?
I'm writing an application that first tries to open a WebSocket connection (to make sure no others are open; address collision checking) before firing off a custom protocol that will launch a one-time ...
- 559
0
votes
1
answer
545
views
Allow HTTP web application to open custom protocol without being prompted always
I have a web application that opens a local application on client machines using a protocol already registered during client setup.
The web application gives an alert when opening local application ...
- 113
1
vote
0
answers
271
views
How secure is data passed via Custom Protocol Handler?
Let's say you set up a custom protocol handler to run an application with some startup data, right?
myapp:\\somedata
How secure is that data? I'm having trouble finding any resources talking about:
...
- 559
0
votes
1
answer
1k
views
Launch a custom protocol handler using javascript in Chrome without a popup?
I am trying to start a custom protocol handler in Chrome via Javascript. I can get the app to start but to do so creates a popup window which then triggers a pop-up blocker. Is there anyway to start ...
- 125
3
votes
0
answers
547
views
Is there a way to get all registered protocol handlers in JS?
So I'm trying to make a web app that basically serves as a URL shortener, where I can use a custom protocol with navigator.registerProtocolHandler (I know that this isn't a very good idea for various ...
- 846