Smart distributed tracing context injection

A system comprising:

• a non-transitory computer-readable medium storing computer-executable program instructions;
• and
• a processing device communicatively coupled to the non-transitory computer-readable medium for executing the computer-executable program instructions, wherein executing the computer-executable program instructions configures the processing device to perform operations comprising:
• determining, at a web browser executing on an end user computing device, that a web page from an original server requires a request to an external server outside a domain of the original server;
• searching an allow list, at the web browser, for whether the external server allows tracing headers in requests from the original server;
• obtaining, via a call to the external server, a list of permissible headers to determine whether the external server allows tracing headers in requests, the call based on results from the searching of the allow list;
• updating the allow list, at the web browser, to indicate that the external server allows tracing headers in requests from the original server;
• injecting a tracing header in the request based on a result of the call;
• and
• sending, from the web browser to the external server, the request with the tracing header, the external server configured to log tracing data based on the tracing header.

A non-transitory computer-readable storage medium storing computer-executable program instructions, wherein when executed by a processing device, the computer-executable program instructions cause the processing device to perform operations comprising:

• determining, at a web browser executing on an end user computing device, that a web page from an original server requires a request to an external server outside a domain of the original server;
• searching an allow list, at the web browser, for whether the external server allows tracing headers in requests from the original server;
• obtaining, via a call to the external server, a list of permissible headers to determine whether the external server allows tracing headers in requests, the call based on results from the searching of the allow list;
• updating the allow list, at the web browser, to indicate that the external server allows tracing headers in requests from the original server;
• injecting a tracing header in the request based on a result of the call;
• and
• sending, from the web browser to the external server, the request with the tracing header, the external server configured to log tracing data based on the tracing header.