Applications that use TLS are not vulnerable to this attack (because the browser will display certificate mismatch warnings that block automated access to the target site). 6.1. User’s guide 35Tornado secure websocket connection (wss://) with a self-signed certificate, the connection from a browser may fail because it wants to show the “accept this certificate” dialog but has nowhere to show it. You must must first visit a regular HTML page using the same certificate to accept it before the websocket connection will succeed. If the application setting websocket_ping_interval has a non-zero value, a ping

Applications that use TLS are not vulnerable to this attack (because the browser will display certificate mismatch warnings that block automated access to the target site). Applications that cannot use secure websocket connection (wss://) with a self-signed certificate, the connection from a browser may fail because it wants to show the “accept this certificate” dialog but has nowhere to show it. You must must first visit a regular HTML page using the same certificate to accept it before the websocket connection will succeed. If the application setting websocket_ping_interval has a non-zero value, a ping

layers. See NetworkOptions.verify_host JULIA_SSL_CA_ROOTS_PATH Specify the file or directory containing the certificate authority roots. See NetworkOptions.ca_roots 29.4 External applications JULIA_SHELL 'A': ASCII/Unicode U+0041 (category Lu: Letter, uppercase) julia> uppercase('ê') 'Ê': Unicode U+00CA (category Lu: Letter, uppercase) source uppercase(s::AbstractString) Return s with all characters called if the remote requires au- thentication to connect. • certificate_cb: a pointer to a callback function which will be called if certificate verification fails. This lets the user decide whether or

layers. See NetworkOptions.verify_host JULIA_SSL_CA_ROOTS_PATH Specify the file or directory containing the certificate authority roots. See NetworkOptions.ca_roots 29.4 External applications JULIA_SHELL 'A': ASCII/Unicode U+0041 (category Lu: Letter, uppercase) julia> uppercase('ê') 'Ê': Unicode U+00CA (category Lu: Letter, uppercase) source uppercase(s::AbstractString) Return s with all characters called if the remote requires au- thentication to connect. • certificate_cb: a pointer to a callback function which will be called if certificate verification fails. This lets the user decide whether or

layers. See NetworkOptions.verify_host JULIA_SSL_CA_ROOTS_PATH Specify the file or directory containing the certificate authority roots. See NetworkOptions.ca_rootsCHAPTER 30. ENVIRONMENT VARIABLES 395 30 'A': ASCII/Unicode U+0041 (category Lu: Letter, uppercase) julia> uppercase('ê') 'Ê': Unicode U+00CA (category Lu: Letter, uppercase) source uppercase(s::AbstractString) Return s with all characters requires au- thentication to connect.CHAPTER 77. LIBGIT2 1393 • certificate_cb: a pointer to a callback function which will be called if certificate verification fails. This lets the user decide whether or

layers. See NetworkOptions.verify_host JULIA_SSL_CA_ROOTS_PATH Specify the file or directory containing the certificate authority roots. See NetworkOptions.ca_rootsCHAPTER 30. ENVIRONMENT VARIABLES 395 30 'A': ASCII/Unicode U+0041 (category Lu: Letter, uppercase) julia> uppercase('ê') 'Ê': Unicode U+00CA (category Lu: Letter, uppercase) source uppercase(s::AbstractString) Return s with all characters requires au- thentication to connect.CHAPTER 77. LIBGIT2 1393 • certificate_cb: a pointer to a callback function which will be called if certificate verification fails. This lets the user decide whether or

layers. See NetworkOptions.verify_host JULIA_SSL_CA_ROOTS_PATH Specify the file or directory containing the certificate authority roots. See NetworkOptions.ca_rootsCHAPTER 30. ENVIRONMENT VARIABLES 395 30 'A': ASCII/Unicode U+0041 (category Lu: Letter, uppercase) julia> uppercase('ê') 'Ê': Unicode U+00CA (category Lu: Letter, uppercase) source uppercase(s::AbstractString) Return s with all characters requires au- thentication to connect.CHAPTER 77. LIBGIT2 1393 • certificate_cb: a pointer to a callback function which will be called if certificate verification fails. This lets the user decide whether or

layers. See NetworkOptions.verify_host JULIA_SSL_CA_ROOTS_PATH Specify the file or directory containing the certificate authority roots. See NetworkOptions.ca_roots 30.4 External applications JULIA_SHELL 'A': ASCII/Unicode U+0041 (category Lu: Letter, uppercase) julia> uppercase('ê') 'Ê': Unicode U+00CA (category Lu: Letter, uppercase) source Base.Unicode.lowercase – Function. lowercase(s::AbstractString) requires au- thentication to connect.CHAPTER 79. LIBGIT2 1454 • certificate_cb: a pointer to a callback function which will be called if certificate verification fails. This lets the user decide whether or

layers. See NetworkOptions.verify_host JULIA_SSL_CA_ROOTS_PATH Specify the file or directory containing the certificate authority roots. See NetworkOptions.ca_roots 30.4 External applications JULIA_SHELL 'A': ASCII/Unicode U+0041 (category Lu: Letter, uppercase) julia> uppercase('ê') 'Ê': Unicode U+00CA (category Lu: Letter, uppercase) source Base.Unicode.lowercase – Function. lowercase(s::AbstractString) requires au- thentication to connect.CHAPTER 79. LIBGIT2 1452 • certificate_cb: a pointer to a callback function which will be called if certificate verification fails. This lets the user decide whether or

layers. See NetworkOptions.verify_host JULIA_SSL_CA_ROOTS_PATH Specify the file or directory containing the certificate authority roots. See NetworkOptions.ca_roots 30.4 External applications JULIA_SHELL 'A': ASCII/Unicode U+0041 (category Lu: Letter, uppercase) julia> uppercase('ê') 'Ê': Unicode U+00CA (category Lu: Letter, uppercase) source Base.Unicode.lowercase – Function. lowercase(s::AbstractString) requires au- thentication to connect.CHAPTER 79. LIBGIT2 1451 • certificate_cb: a pointer to a callback function which will be called if certificate verification fails. This lets the user decide whether or