android - Unknown error about HttpURLConnection GET request

Question

Are there any risks with the following request? Today the tester said that one of the Meizu phones failed to request an opportunity, which bothered me all afternoon with the problem android java.net.ProtocolException, but other machines were fine

Then I used Charles to check and found that the request was UNKNOW. I searched on Baidu and Google, but could not find a similar situation

Answer 1

It may be a blueberry phone firmware or network problem