Javascript 瓶子.py-“;否';访问控制允许原点';请求的资源上存在标头”;
我已设置以下瓶子路径:Javascript 瓶子.py-“;否';访问控制允许原点';请求的资源上存在标头”;,javascript,python,bottle,Javascript,Python,Bottle,我已设置以下瓶子路径: import tornado from bottle import route, run, hook, response import cudpred as cp _allow_origin = '*' _allow_methods = 'PUT, GET, POST, DELETE, OPTIONS' _allow_headers = 'Authorization, Origin, Accept, Content-Type, X-Requested-With, X-C
import tornado
from bottle import route, run, hook, response
import cudpred as cp
_allow_origin = '*'
_allow_methods = 'PUT, GET, POST, DELETE, OPTIONS'
_allow_headers = 'Authorization, Origin, Accept, Content-Type, X-Requested-With, X-CSRF-Token'
@hook('after_request')
def enable_cors():
'''Add headers to enable CORS'''
response.headers['Access-Control-Allow-Origin'] = _allow_origin
response.headers['Access-Control-Allow-Methods'] = _allow_methods
response.headers['Access-Control-Allow-Headers'] = _allow_headers
@route('/', method = 'OPTIONS')
@route('/<path:path>', method = 'OPTIONS')
def options_handler(path = None):
return
@route('/mapjson/<weekdaytopredict:int>/<hourtopredict:int>')
def mapjson(weekdaytopredict=0, hourtopredict=0):
return cp.writeGeoJSON(weekdaytopredict, hourtopredict)
@route('/preddt/<weekdaytopredict:int>/<hourtopredict:int>/<predictionmethod:int>/<normalization:int>')
def preddt(weekdaytopredict=0, hourtopredict=0, predictionmethod =0, normalization=0):
return cp.predicitonCalculator(weekdaytopredict, hourtopredict, predictionmethod, normalization)
run(server='tornado', host='0.0.0.0', port=2526, debug=False, reloader=True)
我的问题是,这适用于mapjson
调用,但不适用于preddt
调用。每当我运行对mapjson
的任何请求时,如果我尝试访问http://remote_machine:port/preddt
通过参数,我可以得到:
XMLHttpRequest cannot load http://remote_machine:port/preddt/4/21/1/0. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://my.hosted.website.com' is therefore not allowed access. The response had HTTP status code 500.
我遗漏了什么,如何修复?线索是,在您发布的错误消息末尾:
响应的HTTP状态代码为500
您的/preddt
路由正在返回HTTP 500。您对cp.predictioncalculator
的调用可能是罪魁祸首
我很惊讶,你们并没有在你们的瓶子控制台上看到错误;也许龙卷风把它们放进了日志文件?我要找一个
其他简单的尝试:
- 尝试在没有Tornado的情况下运行它,以查看服务器错误的原因是否变得更加明显,例如,打印在控制台上
- 设置瓶子的
。(您现在已将其设置为debug=True
,不确定原因。)False
- 使用curl点击服务器,这样您就可以比使用浏览器更直接地检查HTTP响应和标题
- 要证明它确实是
,请修改cp.predicitioncalculator
函数以简单地返回字符串。您将不再收到HTTP 500错误(并且您的CORS头将工作)preddt
function updateMap(e, weekday, hour, model, normalization){
e.preventDefault();
if (typeof(weekday) == 'undefined' || typeof(hour) == 'undefined' || weekday == '' || hour == '') {
mapurl = 'mymap.url';
} else if(model == 0) {
mapurl = 'http://remote_machine:port/mapjson/' + weekday + '/' + hour
} else {
mapurl = 'http://remote_machine:port/preddt/' + weekday + '/' + hour + '/' + model + '/' + normalization
}
...ETC...
}
XMLHttpRequest cannot load http://remote_machine:port/preddt/4/21/1/0. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://my.hosted.website.com' is therefore not allowed access. The response had HTTP status code 500.