Dump when reloading web page while requests are open

[andig]

Reloading page while 1~5 requests are still pending triggers crash:

ERROR[-8] Address in use, state: Closed
Fatal exception 3(LoadStoreErrorCause):
epc1=0x4010011d, epc2=0x00000000, epc3=0x00000000, excvaddr=0x40034d08, depc=0x00000000

Exception (3):
epc1=0x4010011d epc2=0x00000000 epc3=0x00000000 excvaddr=0x40034d08 depc=0x00000000

ctx: sys 
sp: 3ffffcb0 end: 3fffffb0 offset: 01a0

>>>stack>>>
3ffffe50:  4020bff8 000000f8 3fff4f9c 401003e1  
3ffffe60:  3fff0484 000006ce 000006ce 4010020c  
3ffffe70:  3fff4c54 4020f798 3fff4c4c 401008c8  
3ffffe80:  00007526 4020f798 3fff4c54 40107158  
3ffffe90:  3fff4c54 3fff4c54 3fff54f4 40228734  
3ffffea0:  1e00a8c0 a500a8c0 00000001 3fff4f9c  
3ffffeb0:  00007526 f4a83f0d 00000050 0000c62a  
3ffffec0:  4022874a 3fff4f9c 000000ff 402268de  
3ffffed0:  4020f2e9 3fff4f9c 00000000 00000000  
3ffffee0:  4020f5cf 3fff4e54 000000ff 4020f5d9  
3ffffef0:  0000004a 3fff4f9c 00000000 4020f634  
3fffff00:  00000000 00000000 00000002 40107148  
3fffff10:  40227916 3fff4c54 3ffef684 3ffef660  
3fffff20:  3ffef684 00000000 3fff4c54 4020f6cf  
3fffff30:  402273d1 3fff4c54 00000000 40227514  
3fffff40:  f4a83f0c 000069be 00000001 00000011  
3fffff50:  00000000 00000000 4022632a 3fff4d14  
3fffff60:  3fff1ae4 3ffec336 3fff1ae4 402250bf  
3fffff70:  3fff1ae4 00000014 4022566a 3fff4d14  
3fffff80:  3fff1ae4 3fffdc80 3fff1b44 00000001  
3fffff90:  4023101f 3fff4d14 00000000 4021173f  
3fffffa0:  40000f49 3fffdab0 3fffdab0 40000f49  
<<<stack<<<


Decoding 30 results
0x4010011d: umm_assimilate_up at C:\andi\arduino\hardware\esp8266com\esp8266\cores\esp8266\umm_malloc/umm_malloc.c:1161
0x40034d08: ?? ??:0
0x4010011d: umm_assimilate_up at C:\andi\arduino\hardware\esp8266com\esp8266\cores\esp8266\umm_malloc/umm_malloc.c:1161
0x40034d08: ?? ??:0
0x4020bff8: operator() at C:\andi\arduino\hardware\esp8266com\esp8266\libraries\ESPAsyncWebServer\src/WebRequest.cpp:568
 (inlined by) _M_invoke at c:\andi\arduino\hardware\esp8266com\esp8266\tools\xtensa-lx106-elf\xtensa-lx106-elf\include\c++\4.8.2/functional:2071
0x401003e1: check_poison_block at C:\andi\arduino\hardware\esp8266com\esp8266\cores\esp8266\umm_malloc/umm_malloc.c:835
0x4010020c: _umm_free at C:\andi\arduino\hardware\esp8266com\esp8266\cores\esp8266\umm_malloc/umm_malloc.c:1285
0x4020f798: AsyncClient::_s_error(void*, signed char) at C:\andi\arduino\hardware\esp8266com\esp8266\libraries\ESPAsyncTCP\src/ESPAsyncTCP.cpp:506 (discriminator 4)
0x401008c8: free at C:\andi\arduino\hardware\esp8266com\esp8266\cores\esp8266\umm_malloc/umm_malloc.c:1731
0x4020f798: AsyncClient::_s_error(void*, signed char) at C:\andi\arduino\hardware\esp8266com\esp8266\libraries\ESPAsyncTCP\src/ESPAsyncTCP.cpp:506 (discriminator 4)
0x40107158: vPortFree at C:\andi\arduino\hardware\esp8266com\esp8266\cores\esp8266/heap.c:18
0x40228734: tcp_abandon at ??:?
0x4022874a: tcp_abort at ??:?
0x402268de: pbuf_alloc at ??:?
0x4020f2e9: AsyncClient::abort() at C:\andi\arduino\hardware\esp8266com\esp8266\libraries\ESPAsyncTCP\src/ESPAsyncTCP.cpp:506 (discriminator 4)
0x4020f5cf: AsyncClient::_close() at C:\andi\arduino\hardware\esp8266com\esp8266\libraries\ESPAsyncTCP\src/ESPAsyncTCP.cpp:506 (discriminator 4)
0x4020f5d9: AsyncClient::_close() at C:\andi\arduino\hardware\esp8266com\esp8266\libraries\ESPAsyncTCP\src/ESPAsyncTCP.cpp:506 (discriminator 4)
0x4020f634: AsyncClient::_recv(tcp_pcb*, pbuf*, signed char) at C:\andi\arduino\hardware\esp8266com\esp8266\libraries\ESPAsyncTCP\src/ESPAsyncTCP.cpp:506 (discriminator 4)
0x40107148: pvPortMalloc at C:\andi\arduino\hardware\esp8266com\esp8266\cores\esp8266/heap.c:13
0x40227916: tcp_input at ??:?
0x4020f6cf: AsyncClient::_s_recv(void*, tcp_pcb*, pbuf*, signed char) at C:\andi\arduino\hardware\esp8266com\esp8266\libraries\ESPAsyncTCP\src/ESPAsyncTCP.cpp:506 (discriminator 4)
0x402273d1: tcp_input at ??:?
0x40227514: tcp_input at ??:?
0x4022632a: ip_input at ??:?
0x402250bf: etharp_find_addr at ??:?
0x4022566a: ethernet_input at ??:?
0x4023101f: ets_snprintf at ??:?
0x4021173f: loop_task at C:\andi\arduino\hardware\esp8266com\esp8266\cores\esp8266/core_esp8266_main.cpp:43
0x40000f49: ?? ??:0
0x40000f49: ?? ??:0

[andig]

Fixed with the changes discussed. Nice one ;)