chrome-trace | Example of how to trace chrome in .NET | Code Inspection library
kandi X-RAY | chrome-trace Summary
kandi X-RAY | chrome-trace Summary
Example of how to trace chrome in .NET
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QUESTION
This question is related to my other question - How to open a chrome trace file with ui.perfetto.dev non interactively?
I am attempting to open the trace events by navigating to the following url:
...ANSWER
Answered 2022-Jan-04 at 16:54Unfortunately (or actually, fortunately) a browser cannot open file:// URLs (if it could, it would be a nightmare for web security).
In order to achieve what you want, spawn a local HTTP server and use the ?url= argument (see my reply to How to open a chrome trace file with ui.perfetto.dev non interactively?)
QUESTION
I have the most trivial local http server which is wired to serve a single file from localhost. I can navigate to the resource from the browser just fine, but I need to be able to fetch the resource using the fetch
web api from the browser console and that just does not work unless the console is from exactly the same origin.
Please, observe:
The resource is live:
...ANSWER
Answered 2022-Jan-04 at 16:45This is not CORS, it's the Content Security Policy, defined here:
https://github.com/google/perfetto/blob/master/ui/src/frontend/index.ts#L127
It supports only fetch from localhost:9001 to reduce the attack surface.
If you make your webserver listen on port 9001 rather than a random port, the error should go away.
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