not feching envoy with backend if I use ssl for grpc grpc-web

Not feching envoy with backend if I use ssl for grpc grpc-web , But if i use without ssl envoy , it getting correctly both grpc and grpc-web. envoy using 1.18 version, and forcely using http2, always getting below error

```
[METADATA][2021-06-23 10:31:03.668][13][trace][connection] [source/common/network/connection_impl.cc:506] [C2] socket event: 2
[METADATA][2021-06-23 10:31:03.668][13][trace][connection] [source/common/network/connection_impl.cc:607] [C2] write ready
[METADATA][2021-06-23 10:31:03.668][13][debug][connection] [source/extensions/transport_sockets/tls/ssl_socket.cc:190] [C2] handshake expecting read
[METADATA][2021-06-23 10:31:03.831][13][trace][connection] [source/common/network/connection_impl.cc:506] [C2] socket event: 3
[METADATA][2021-06-23 10:31:03.831][13][trace][connection] [source/common/network/connection_impl.cc:607] [C2] write ready
[METADATA][2021-06-23 10:31:03.831][13][debug][connection] [source/extensions/transport_sockets/tls/ssl_socket.cc:197] [C2] handshake error: 1
[METADATA][2021-06-23 10:31:03.831][13][debug][connection] [source/extensions/transport_sockets/tls/ssl_socket.cc:225] [C2] TLS error: 268435703:SSL routines:OPENSSL_internal:WRONG_VERSION_NUMBER
[METADATA][2021-06-23 10:31:03.831][13][debug][connection] [source/common/network/connection_impl.cc:208] [C2] closing socket: 0
[METADATA][2021-06-23 10:31:05.294][1][debug][upstream] [source/common/upstream/upstream_impl.cc:278] transport socket match, socket default selected for host with address 172.20.120.201:8081
```

backend working with 172.20.120.201:8081 IP and port
Below I'm using envoy conf with ssl

```
admin:
access_log_path: /dev/stdout
address:
socket_address: { address: 0.0.0.0, port_value: 8801 }
static_resources:
# https://www.envoyproxy.io/docs/envoy/v1.15.0/api-v3/config/listener/v3/listener.proto#config-listener-v3-listener
listeners:
- name: listener_0
address:
socket_address:
address: 0.0.0.0
port_value: 8803
filter_chains:
- filters:
- name: envoy.filters.network.http_connection_manager
typed_config:
# https://www.envoyproxy.io/docs/envoy/v1.15.0/api-v3/extensions/filters/network/http_connection_manager/v3/http_connection_manager.proto#extensions-filters-network-http-connection-manager-v3-httpconnectionmanager
"@type": type.googleapis.com/envoy.extensions.filters.network.http_connection_manager.v3.HttpConnectionManager
stat_prefix: ingress_http
access_log:
# https://www.envoyproxy.io/docs/envoy/v1.15.0/api-v3/extensions/access_loggers/file/v3/file.proto
#
# You can also configure this extension with the qualified
# name envoy.access_loggers.http_grpc
# https://www.envoyproxy.io/docs/envoy/v1.15.0/api-v3/extensions/access_loggers/grpc/v3/als.proto
- name: envoy.access_loggers.file
typed_config:
# https://www.envoyproxy.io/docs/envoy/v1.15.0/api-v3/extensions/access_loggers/file/v3/file.proto#extensions-access-loggers-file-v3-fileaccesslog
"@type": type.googleapis.com/envoy.extensions.access_loggers.file.v3.FileAccessLog
# Console output
path: /dev/stdout
route_config:
name: local_route
virtual_hosts:
- name: local_service
domains:
- "test.domain.com"
routes:
- match:
prefix: /
grpc:
route:
cluster: tkmicro
cors:
allow_origin_string_match:
- prefix: "*"
allow_methods: GET, PUT, DELETE, POST, OPTIONS
# custom-header-1 is just an example. the grpc-web
# repository was missing grpc-status-details-bin header
# which used in a richer error model.
# https://grpc.io/docs/guides/error/#richer-error-model
allow_headers: accept-language,accept-encoding,user-agent,referer,sec-fetch-mode,origin,access-control-request-headers,access-control-request-method,accept,cache-control,pragma,connection,host,name,x-grpc-web,x-user-agent,grpc-timeout,content-type,channel,api-key,lang
expose_headers: grpc-status-details-bin,grpc-status,grpc-message,authorization
max_age: "1728000"
http_filters:
- name: envoy.filters.http.grpc_web
# This line is optional, but adds clarity to the configuration.
typed_config:
# https://www.envoyproxy.io/docs/envoy/v1.15.0/api-v3/extensions/filters/http/grpc_web/v3/grpc_web.proto
"@type": type.googleapis.com/envoy.extensions.filters.http.grpc_web.v3.GrpcWeb
- name: envoy.filters.http.cors
typed_config:
# https://www.envoyproxy.io/docs/envoy/v1.15.0/api-v3/extensions/filters/http/cors/v3/cors.proto
"@type": type.googleapis.com/envoy.extensions.filters.http.cors.v3.Cors
- name: envoy.filters.http.grpc_json_transcoder
typed_config:
"@type": type.googleapis.com/envoy.extensions.filters.http.grpc_json_transcoder.v3.GrpcJsonTranscoder
proto_descriptor: "/home/ubuntu/envoy/sync.pb"
ignore_unknown_query_parameters: true
services:
- "com.tk.system.sync.Synchronizer"
print_options:
add_whitespace: true
always_print_primitive_fields: true
always_print_enums_as_ints: true
preserve_proto_field_names: true
- name: envoy.filters.http.router
typed_config:
# https://www.envoyproxy.io/docs/envoy/v1.15.0/api-v3/extensions/filters/http/router/v3/router.proto
"@type": type.googleapis.com/envoy.extensions.filters.http.router.v3.Router
transport_socket:
name: envoy.transport_sockets.tls
typed_config:
"@type": type.googleapis.com/envoy.extensions.transport_sockets.tls.v3.DownstreamTlsContext
common_tls_context:
alpn_protocols: "h2"
tls_certificates:
- certificate_chain:
inline_string: |
-----BEGIN CERTIFICATE-----
MIIFyTCCBLGgAwIBA7gIRALSd5cAbClvwTierhXPozw4wDQYJKoZIhvcNAQELBQA
gY8xCzAJBgNVBAYTAkdCMRs7wGQYDVQQIExJHcmVhdGVyIE1hbmNoZXN0ZXI
q+i9N5HIlXOev24xY5GSDiGQekUB8J7D8YQQ1IoCiFdPtpe8gFOkCGcGN1tUi80ft
RVWrwn8TdJT3qwmnQb2r30W6Abz//BcomAa7mSRpxK01CEzQm5mukeeL1kvp
-----END CERTIFICATE-----
private_key:
inline_string: |
-----BEGIN RSA PRIVATE KEY-----
MIIEpQIBAAKCAQEAvRWWc/Wg8uLpvNGVJ3NNv7dad6lO99lMn6K5mxjAVkRjBh1K
2CMKJavnoyhF+6Y12AG6B7RFz26t28AOWFkwzi7vzJXGXx+CyRyrjKMGfPFkfbcdjjjjj
YAp2fPpfba3vIDdW3Hg4puOKKrOFEZCGMJUzgKF1EAab1n9zGF44NGU=
-----END RSA PRIVATE KEY-----

clusters:
# https://www.envoyproxy.io/docs/envoy/v1.15.0/api-v3/config/cluster/v3/cluster.proto#config-cluster-v3-cluster
- name: tkmicro
type: LOGICAL_DNS
connect_timeout: 0.25s
lb_policy: round_robin
load_assignment:
cluster_name: tkmicro
endpoints:
- lb_endpoints:
- endpoint:
address:
socket_address:
address: 172.20.120.201
port_value: 8081
http2_protocol_options: {} # Force HTTP/2
```