We have a JMeter UI script that runs fine in JMeter but when running in BlazeMeter we are getting java.io.IOException for some ajax calls within the script.
java.io.IOException: Unable to tunnel through proxy. Proxy returns "HTTP/1.1 407 Proxy Authentication Required"
Client implementation within the script needs to be set to “Java” for these calls. We get parse errors when using -HttpClinet4 or Empty.
i. The URL has special characters like open/close flower braces and commas etc.
ii. Tried encoding the complete request through Base 64 /UTF-8
iii. Tried providing the request part in Body data & few other options , but no luck.
We have also tried uploading properties files from JMeter to BlazeMeter. BlazeMeter seems to use the system and user property files but not the jmeter.properties.
We have also tried adding some of the jmeter.properties through the GUI but have not had any luck.
Component : BLOCKMASTER
Researching this Java error it looks like this is a known issue for Java8. As of Java 8 update 111, proxies requiring Basic authentication when setting up a tunnel for HTTPS will no longer succeed by default. This authentication scheme can be reactivated by removing Basic from the jdk.http.auth.tunneling.disabledSchemes networking property, or by setting a system property of the same name to "" ( empty ) on the command line. See https://www.oracle.com/technetwork/java/javase/8u111-relnotes-3124969.html
Disable Basic authentication for HTTPS tunneling
In some environments, certain authentication schemes may be undesirable when proxying HTTPS. Accordingly, the Basic authentication scheme has been deactivated, by default, in the Oracle Java Runtime, by adding Basic to the jdk.http.auth.tunneling.disabledSchemes networking property. Now, proxies requiring Basic authentication when setting up a tunnel for HTTPS will no longer succeed by default. If required, this authentication scheme can be reactivated by removing Basic from the jdk.http.auth.tunneling.disabledSchemes networking property, or by setting a system property of the same name to "" ( empty ) on the command line.
Additionally, the jdk.http.auth.tunneling.disabledSchemes and jdk.http.auth.proxying.disabledSchemes networking properties, and system properties of the same name, can be used to disable other authentication schemes that may be active when setting up a tunnel for HTTPS, or proxying plain HTTP, respectively.
JDK-8160838 (not public)