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constexpress=require("express");constapp=express();app.get("/",(req,res)=>{thrownewError("foo",{cause: newError("bar"),});});app.listen(3000,()=>{console.log("Server is running on port 3000");});
$ node server.jsServer is running on port 3000
$ curl "localhost:3000"
Actual
The error cause is not displayed.
Error: foo
at /Users/oliver/Code/reduced-test-cases/express-error-cause/server.js:6:9
at Layer.handle [as handle_request] (/Users/oliver/Code/reduced-test-cases/express-error-cause/node_modules/express/lib/router/layer.js:95:5)
at next (/Users/oliver/Code/reduced-test-cases/express-error-cause/node_modules/express/lib/router/route.js:149:13)
at Route.dispatch (/Users/oliver/Code/reduced-test-cases/express-error-cause/node_modules/express/lib/router/route.js:119:3)
at Layer.handle [as handle_request] (/Users/oliver/Code/reduced-test-cases/express-error-cause/node_modules/express/lib/router/layer.js:95:5)
at /Users/oliver/Code/reduced-test-cases/express-error-cause/node_modules/express/lib/router/index.js:284:15
at Function.process_params (/Users/oliver/Code/reduced-test-cases/express-error-cause/node_modules/express/lib/router/index.js:346:12)
at next (/Users/oliver/Code/reduced-test-cases/express-error-cause/node_modules/express/lib/router/index.js:280:10)
at expressInit (/Users/oliver/Code/reduced-test-cases/express-error-cause/node_modules/express/lib/middleware/init.js:40:5)
at Layer.handle [as handle_request] (/Users/oliver/Code/reduced-test-cases/express-error-cause/node_modules/express/lib/router/layer.js:95:5)
Expected
The error cause should be displayed, like it is for exceptions occurring outside of request handlers.
Error: foo
at /Users/oliver/Code/reduced-test-cases/express-error-cause/server.js:6:9
at Layer.handle [as handle_request] (/Users/oliver/Code/reduced-test-cases/express-error-cause/node_modules/express/lib/router/layer.js:95:5)
... 7 lines matching cause stack trace ...
at Layer.handle [as handle_request] (/Users/oliver/Code/reduced-test-cases/express-error-cause/node_modules/express/lib/router/layer.js:95:5) {
[cause]: Error: bar
at /Users/oliver/Code/reduced-test-cases/express-error-cause/server.js:7:12
at Layer.handle [as handle_request] (/Users/oliver/Code/reduced-test-cases/express-error-cause/node_modules/express/lib/router/layer.js:95:5)
at next (/Users/oliver/Code/reduced-test-cases/express-error-cause/node_modules/express/lib/router/route.js:149:13)
at Route.dispatch (/Users/oliver/Code/reduced-test-cases/express-error-cause/node_modules/express/lib/router/route.js:119:3)
at Layer.handle [as handle_request] (/Users/oliver/Code/reduced-test-cases/express-error-cause/node_modules/express/lib/router/layer.js:95:5)
at /Users/oliver/Code/reduced-test-cases/express-error-cause/node_modules/express/lib/router/index.js:284:15
at Function.process_params (/Users/oliver/Code/reduced-test-cases/express-error-cause/node_modules/express/lib/router/index.js:346:12)
at next (/Users/oliver/Code/reduced-test-cases/express-error-cause/node_modules/express/lib/router/index.js:280:10)
at expressInit (/Users/oliver/Code/reduced-test-cases/express-error-cause/node_modules/express/lib/middleware/init.js:40:5)
at Layer.handle [as handle_request] (/Users/oliver/Code/reduced-test-cases/express-error-cause/node_modules/express/lib/router/layer.js:95:5)
}
The text was updated successfully, but these errors were encountered:
Hey @OliverJAsh, thanks for the report. The specification for error causes is comparatively new to the code which handles this and the error stack is what we use for displaying this. I do agree though that showing error causes for development logging would be an awesome improvement. Feel free to open a PR for this one.
package.json
:server.js
:$ curl "localhost:3000"
Actual
The error
cause
is not displayed.Expected
The error
cause
should be displayed, like it is for exceptions occurring outside of request handlers.The text was updated successfully, but these errors were encountered: