fix: do not throw when alt path is found in next

[elevatebart]

Closes #17476

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[cypress]

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Test summary

8276 • 0 • 103 • 3 • 3

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Run details

Project	cypress
Status	Passed
Commit	029c7b6
Started	Aug 10, 2021 3:49 AM
Ended	Aug 10, 2021 3:59 AM
Duration	10:20 💡
OS	Linux Debian - 10.8
Browser	Multiple

View run in Cypress Dashboard ➡️

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Flakiness

	cypress/proxy-logging-spec.ts		1
1	Proxy Logging > request logging > fetch log shows resource type, url, method, and status code and has expected snapshots and consoleProps
	commands/xhr_spec.js		1
1	src/cy/commands/xhr > abort > aborts xhrs currently in flight
	commands/net_stubbing_spec.ts		1
1	network stubbing > intercepting request > can intercept utf-8 request bodies without crashing

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