CFNetwork internal error (0xc01a:/BuildRoot/Library/Caches/com.apple.xbs/Sources/CFNetwork/CFNetwork

Just started a project from the N layer of JSON data to take an array of URL, after a variety of traversal what finally get the correct URL, but the running program found that the image does not display, print URL image display normal. Report the following questions, a variety of Baidu also did not find any description of the answer to the question. See also: stackoverflow.com

The discovery is all about the problem in the URL, and finally check the code:

Found that in fact the website repeatedly wrote, change back OK

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