Multiple projects under the same domain name failed to be verified on iPhone using sessionID,.

the php image verification code is used in the background, and the front end carries the cookie verification code through fetch. There are multiple projects in a domain name that require picture CAPTCHA to verify login. On Android phones, every project can be verified. But it can"t be verified on the iPhone. It"s always a CAPTCHA error. Sessionid seems to be multiple requests, and check when the request, the source is not clear, how to solve this problem?
when authentication fails,

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Mar.10,2022
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