Allow HTTP_ACCEPT header to be switched off in llHTTPRequest
Peter Stindberg
Some external services deny a request if a HTTP_ACCEPT header is present. However, llHTTPRequest enforces that header, using "text/plain;charset=utf-8" if no other header (out of a small list of available options) is present. As Monty Linden confirmed in https://community.secondlife.com/forums/topic/521090-grid-ssl-cert-updates-coming-soon/#findComment-2881062, empty HTTP_ACCESS headers are not allowed.
I would like to suggest that making a llHTTPRequest call with an explicitly empty HTTP_ACCEPT header will remove that header altogether in http-out calls.
Examples:
llHTTPRequest(url, [],"" );
No HTTP_ACCEPT set, default "text/plain;charset=utf-8" gets used.
llHTTPRequest(url, [HTTP_ACCEPT, "application/json”],"" );
Specific HTTP_ACCEPT set, so only "application/json” gets accepted.
llHTTPRequest(url, [HTTP_ACCEPT, ""],"" );
Empty string gets passed - HTTP_ACCEPT header gets removed completely.
The chances for breaking existing content are slim, since a scripter would have had to explicitly pass an empty string (in violation of the documentation), and then rely on it being substituted with text/plain.
Since work on the http-out part is underway anyway, this would be an ideal opportunity to add this feature.
Log In
Signal Linden
Merged in a post:
Remove the ll.HTTPRequest Content-Type response restriction, or allow any HTTP_ACCEPT header including none.
WolfGang Senizen
With lua being able to handle null bytes in strings and the existence of buffers, this limitation seems even more arbitrary than it used to be.
There are constantly api's that people want to use from sl but can't because they respond in some slightly different format to plain json or so.
I suggest either removing this restriction or possibly implementing a new maybe more "fetch" like http request method, that can be optioned to respond with a buffer instead of a string for cases where that might apply.
Monty Brandenberg
Monty Brandenberg
Related to some recent asks in the non-SLua world: https://feedback.secondlife.com/scripting-features/p/allow-http-accept-header-to-be-switched-off-in-llhttprequest