1. js error reporting solution
This is generally caused by the fact that the node you obtained does not exist.
The possible reason for this: When you get this node, the node has not been loaded, for example: your JS is written in the head, and you can take a node in the body, which is not available at this time. Solution for this situation: put JS code behind
Cannot read property 'appendChild' of null
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Origin http://43.154.161.224:23101/article/api/json?id=325771080&siteId=291194637
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