Note all the .format stuff - this lets you respond to different “extensions” with different content type. So in this case, requesting /bands/1/tags/5 would return HTML by default, but I could also request /bands/1/tags/5.json and the controller can be informed that I’m expecting a JSON response.
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The London Wildlife Trust says they do not have sufficient legal protection and wants them to be included in the National Planning Policy Framework, which is open for consultation until Tuesday.，详情可参考新收录的资料