HTTP 400 error code for HTTP proxy workaround with LDClientConfigBuilder_ServiceEndpoints_RelayProxyBaseURL #459
Description
Is this a support request?
Yes
Describe the bug
I'm trying to use LDClientConfigBuilder_ServiceEndpoints_RelayProxyBaseURL walk-around mentioned in #394 to set HTTP proxy.
To reproduce
const std::string kSelectedProxy = "http://xx.xx.xx.xxx:443";
LDClientConfigBuilder builder = LDClientConfigBuilder_New(SDKKey);
std::cout<<"Using Proxy: "<<kSelectedProxy<<std::endl;
LDClientConfigBuilder_ServiceEndpoints_RelayProxyBaseURL(builder, kSelectedProxy.c_str());
......
std::cout<<"Starting client..."<<std::endl;
if (LDClientSDK_Start(client, kMaxWait, &initialized_successfully))
......
Expected behavior
SDK connects to LD endpoints through proxy.
Logs
Logs in streaming mode:
Using Proxy: http://xx.xx.xx.xxx:443
Starting client...
[LaunchDarkly] sse-client: backing off in (1) seconds due to HTTP status 400 (Bad Request)
[LaunchDarkly] sse-client: backing off in (3) seconds due to HTTP status 400 (Bad Request)
[LaunchDarkly] sse-client: backing off in (5) seconds due to HTTP status 400 (Bad Request)
Connection Timeout.
Logs in polling mode:
Using Proxy: http://xx.xx.xx.xxx:443
Starting client...
Connection Timeout.
SDK version
3.5.0
Language version, developer tools
C++17
OS/platform
Apple M3 Pro, 14.3
Additional context
The proxy servers are working without issue for other testings. I've also verified them using curl -x http://my-proxy:port https://www.google.com