boost_beast/tools/valgrind.supp

{
   zlib_fill_window_no_init
   Memcheck:Cond
   fun:fill_window
}

{
   zlib_deflate_fast
   Memcheck:Cond
   fun:deflate_fast
}

{
   Ignore OpenSSL malloc
   Memcheck:Leak
   fun:malloc
   fun:CRYPTO_malloc
   obj:*libcrypto*
}
{
   Ignore OpenSSL realloc
   Memcheck:Leak
   fun:realloc
   fun:CRYPTO_realloc
   obj:*libcrypto*
}
{
    OpenSSL Non-Purify
    Memcheck:Cond
    obj:*libcrypto*
}