Variables: honor no_cacheable for not_found variables.
Variables with the "not_found" flag set follow the same rules as ones with
the "valid" flag set. Make sure ngx_http_get_flushed_variable() will flush
non-cacheable variables with the "not_found" flag set.
This fixes at least one known problem with $args not available in a subrequest
(with args) when there were no args in the main request and $args variable was
queried in the main request (reported by Laurence Rowe aka elro on irc).
Also this eliminates unneeded call to ngx_http_get_indexed_variable() in
cacheable case (as it will return cached value anyway).
diff --git a/src/http/ngx_http_variables.c b/src/http/ngx_http_variables.c
index d6bb92c..78cfa23 100644
--- a/src/http/ngx_http_variables.c
+++ b/src/http/ngx_http_variables.c
@@ -432,7 +432,7 @@
v = &r->variables[index];
- if (v->valid) {
+ if (v->valid || v->not_found) {
if (!v->no_cacheable) {
return v;
}
