[Feature]: Support CORS headers on OTEL HTTP endpoint

[yurishkuro]

Requirement

Allow exporting traces from browser directly to Jaeger.

Problem

Access from the browser usually requires addressing the CORS issue.

https://stackoverflow.com/questions/76266837/open-telemetry-cors-issue-exporting-trace-data-to-jaeger

Proposal

Support CORS headers similar to how they are supported on Zipkin endpoint (see #2056). If OTLP HTTP Receiver already supports these, we need to allow configuring them.

Open questions

No response

[sid-008]

Hey @yurishkuro, how can I help with this issue?

[yurishkuro]

If you don't know outright how to implement it, you can help by doing research:

• does OTLP receiver support this? If so, how/where it can be configured.

[sid-008]

This and this should hopefully help.

Additionally it is mentioned here that CORSSettings can be used to configure a receiver for HTTP CORS. Do let me know if this is satisfactory, and I can try my best to figure this out

[samyakjain10]

Hi @sid-008, was just wondering if you are still working on this issue

[sid-008]

No I am not, I don't really know how to outright implement it, you can take a shot at it

[sbdtu5498]

/assign

[shubmjagtap]

Hi @yurishkuro can i work on this ? @sbdtu5498 opened PR but its been 14 days . So can i work on this ?

[yurishkuro]

@shubmjagtap feel free to submit above PR. #4510 is not doing what's needed.

[shubmjagtap]

yes thanks

[sbdtu5498]

@yurishkuro didn't get time to catch up on the work again. I have closed the pr for the time being.