The browser shows the html text instead of the render, most of the time.

WEB TMS WEB Core
1

I am using Chrome and trying out PWA. With a basic application it works fine. But with the PWAS, the browser shows the actual html text every time. The only way I can fix it by closing the browser and running again. And then it works, once. Any ideas why ?

2

We've not received such problem report before.
Can you send the project with which we can reproduce this here?

3

Hi Bruno,

the supplied demo PWA calculator does it too. This doesnt happen for other TMS projects. Only when they are PWAs.

4

Just had a look at the Console Log, With the PWA Calculator, whenever it fails the error is

Failed to load resource: the server responded with a status of 503 (Service Unavailable)
:8000/favicon.ico:1

5

I tested this like 10 times but I could not reproduce such problem.
The icon is normally set with:
<link rel="icon" href="data:;base64,=">
in the project HTML file.
Do you see this happening on a different browser, different machine?

6

The icon is there obviously. It is teh demo project. I suspect timing of some sort. It works every time with Brave and Firefox. Which surprised me as Brave is set up to be a little restricted and Firefox is protected to the max. I use different browsers for different purposes. And when I started this, I decided to use Chrome (with no restrictions) for development and it also flushes the cache regularly.

On Chrome, as long as a browser window is open, it always fails. If I close it, it works most of the time. Are there any other logs I can check ?

7

Maybe you could replace the empty icon reference with an actual icon file that is also available as file in the deployed folder to see if this helps?

8

On Edge, it works all the time but I see this in Console log

The message port closed before a response was received.

So, I am guessing that there is an issue with timing out because the Port is not free. Since I dont see tis issue with a non PWA launch, does the browser treat the PWA differently somehow ?

9

Did you try with an actual icon file?
Yes, the browser treats a PWA different, to start with, it runs the service worker.