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Dev Server has been initialized using an options object that does not match the API schema. - options.allowedHosts[0] should be a non-empty string.

jules G-F answered on December 1, 2022 Popularity 9/10 Helpfulness 4/10

answer Dev Server has been initialized using an options object that does not match the API schema. - options.allowedHosts[0] should be a non-empty string.

Dev Server has been initialized using an options object that does not match the API schema. - options.allowedHosts[0] should be a non-empty string.

Comment

this seems to be a CRA bug (security feature?) 
where allowedHosts gets set to [undefined] because prepareUrls doesn't set lanUrlForConfig 
when both a host and a proxy are specified. The relevant CRA GitHub issue is here.

If appropriate in your use case, this can be avoided by creating a .env file and
1) adding `DANGEROUSLY_DISABLE_HOST_CHECK=true` to it 
2) or trying `DANGEROUSLY_DISABLE_HOST_CHECK=true` yarn start.

Popularity 9/10 Helpfulness 4/10 Language whatever

Source: stackoverflow.com

Tags: api match object server using whatever

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