Reproducer test for JENKINS-76353

Author: strangelookingnerd

pom.xml

@@ -132,6 +132,11 @@ THE SOFTWARE.
 			<artifactId>workflow-job</artifactId>
 			<scope>test</scope>
 		</dependency>
+		<dependency>
+			<groupId>org.wiremock</groupId>
+			<artifactId>wiremock-standalone</artifactId>
+			<version>3.13.1</version>
+		</dependency>
 	</dependencies>
 
 	<scm>

src/test/java/jenkins/plugins/http_request/HttpRequestPluginTest.java

@@ -0,0 +1,63 @@
+package jenkins.plugins.http_request;
+
+import static com.github.tomakehurst.wiremock.client.WireMock.aResponse;
+import static com.github.tomakehurst.wiremock.client.WireMock.get;
+import static com.github.tomakehurst.wiremock.client.WireMock.urlMatching;
+
+import org.jenkinsci.plugins.workflow.cps.CpsFlowDefinition;
+import org.jenkinsci.plugins.workflow.job.WorkflowJob;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.RegisterExtension;
+import org.jvnet.hudson.test.Issue;
+import org.jvnet.hudson.test.JenkinsRule;
+import org.jvnet.hudson.test.junit.jupiter.WithJenkins;
+
+import com.github.tomakehurst.wiremock.junit5.WireMockExtension;
+
+@WithJenkins
+class HttpRequestPluginTest {
+
+	@RegisterExtension
+	private static final WireMockExtension WIRE_MOCK_EXTENSION = WireMockExtension.newInstance().build();
+
+	private JenkinsRule r;
+
+	@BeforeEach
+	void beforeEach(JenkinsRule rule) {
+		r = rule;
+	}
+
+	@Test
+	@Issue("JENKINS-76353")
+	void test() throws Exception {
+		String payload = "Some Random String";
+
+		WIRE_MOCK_EXTENSION.stubFor(get(urlMatching("/JENKINS-76353"))
+				.willReturn(aResponse()
+						.withStatus(200)
+						.withStatusMessage("OK")
+						.withHeader("date", "Fri, 23 Jan 2026 15:30:38 GMT")
+						.withHeader("vary", "Accept-Encoding")
+						.withHeader("content-disposition", "attachment; filename=\"file.txt\"; size=" + payload.length())
+						.withHeader("etag", "\"a21bcba577f439d703fbe1561f77213bedf7a019616fae65d9a76d2b3687773b\"")
+						.withHeader("content-encoding", "none")
+						.withHeader("content-type", "application/octet-stream")
+						.withHeader("cache-control", "no-store, no-cache")
+						.withHeader("pragma", "no-cache")
+						.withHeader("content-length", String.valueOf(payload.length()))
+						.withHeader("strict-transport-security", "max-age=31536000;includeSubDomains")
+						.withBody(payload)
+				));
+
+		WorkflowJob project = r.createProject(WorkflowJob.class);
+		project.setDefinition(new CpsFlowDefinition(
+				"""
+						httpRequest(
+						    url: "%s/JENKINS-76353"
+						)
+						""".formatted(WIRE_MOCK_EXTENSION.baseUrl()),
+				true));
+		r.assertBuildStatusSuccess(project.scheduleBuild2(0));
+	}
+}