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J. Nick Koston
2b5bd961ef
Revert direct req->uri access (unsafe — ESP-IDF uses parsed offsets, not strchr). Instead fix the root cause: query_key_value used a full CONFIG_HTTPD_MAX_URI_LEN+1 (513 byte) stack buffer while search_query_sources had another 513 byte buffer on the stack simultaneously, totaling ~1KB on the httpd thread's limited stack. Use SmallBufferWithHeapFallback<128> for the value extraction buffer. 128 bytes covers typical parameter values on stack; longer values (e.g. base64 IR data) fall back to heap.
