Errors from (fault)net::ERR_EMPTY_RESPONSE and TypeError [ERR_INVALID_HTTP_TOKEN]: Internal error during proxy #28865
Comments
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@francllinrios Cypress has a proxy that pulls all the headers off of the requests and resets them (if needed). This erroring is surfacing that there is an invalid HTTP header since this error is being thrown when we set it from Node's https://www.geeksforgeeks.org/node-js-http-validateheadername-method/ If this is your website: That being said, Cypress should handle this better. Perhaps we should validate that the HTTP headers are correct before resetting them? Or just catch and ignore and errors that are thrown here? Probably second option makes more sense. https://github.com/cypress-io/cypress/blob/fix-flake-on-launchpad-ui/packages/proxy/lib/http/response-middleware.ts#L332 |
jennifer-shehane
added
type: bug
stage: ready for work
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@jennifer-shehane Hi! After some time spent reproducing the bug i managed to do it. I can make cypress raise the error with the visit command but the request command still goes through and I'm still trying to understand why. As to the solution, i followed your suggestion and just ignored the error but shouldn't cypress inform that the header is invalid? Maybe give some type of warning in the console? I'm interested in creating a PR to fix this. |
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@BernardoSousa03 Yah, we should handle this better I think. |
…ypress-io#28865 When receiving the described HTTP response Cypress might reset the headers of the response. This would cause the validateHeaderName method from node to be called which would cause an error, since the headers where invalid. Now Crypress verifies all the headers before reseting them, discards invalid ones and sends a warning in the console when debug module is on.
…o#28865 When receiving the described HTTP response Cypress might reset the headers of the response. This would cause the validateHeaderName method from node to be called which would cause an error, since the headers were invalid. Now Crypress verifies all the headers before reseting them, discards invalid ones and sends a warning in the console when debug module is on.
…o#28865 When receiving the described HTTP response Cypress resets the headers. This would cause the validateHeaderName method from node to be called which would cause an error, since the headers were invalid. Now Crypress verifies all the headers before reseting them, discards invalid ones and sends a warning in the console when debug module is on.
…o#28865 When receiving the described HTTP response Cypress resets the headers. This would cause the validateHeaderName method from node to be called which would cause an error, since the headers where invalid. Now Crypress verifies all the headers before reseting them, discards invalid ones and sends a warning in the console when debug module is on.
…o#28865 When receiving the described HTTP response Cypress resets the headers. This would cause the validateHeaderName method from node to be called which would cause an error, since the headers where invalid. Now Crypress verifies all the headers before reseting them, discards invalid ones and sends a warning in the console when debug module is on.
Current behavior
When I run my automation it returns an unknown error. and only in the Cypress browser on Chrome or any other it gives this error, if I log in outside of the browser that Cypress opens it opens the normal application screen.
ERROR:
Desired behavior
You should be able to return to the login scenario without showing this error and should open the normal screen as shown in the image.
Test code to reproduce
Cypress Version
13.6.4
Node version
v18.16.0
Operating System
macOS e ubuntu 23.10
Debug Logs
Other
No response
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