Error 405 (Method Not Allowed)!!1

html_url,issue_url,id,node_id,user,user_label,created_at,updated_at,author_association,body,reactions,issue,issue_label,performed_via_github_app https://github.com/simonw/datasette/issues/1001#issuecomment-705904566,https://api.github.com/repos/simonw/datasette/issues/1001,705904566,MDEyOklzc3VlQ29tbWVudDcwNTkwNDU2Ng==,9599,simonw,2020-10-09T00:58:08Z,2020-10-09T00:58:08Z,OWNER,"To get a traceback: ``` datasette . -p 8009 --pdb ``` And then: ``` curl -XOPTIONS http://127.0.0.1:8009 ``` This causes the server to open a debugging prompt: ``` INFO: 127.0.0.1:59514 - ""OPTIONS / HTTP/1.1"" 500 Internal Server Error > /Users/simon/Dropbox/Development/datasette/datasette/views/base.py(115)dispatch_request() -> return await handler(request, *args, **kwargs) (Pdb) list 110 def database_color(self, database): 111 return ""ff0000"" 112 113 async def dispatch_request(self, request, *args, **kwargs): 114 handler = getattr(self, request.method.lower(), None) 115 -> return await handler(request, *args, **kwargs) 116 117 async def render(self, templates, request, context=None): 118 context = context or {} 119 template = self.ds.jinja_env.select_template(templates) 120 template_context = { (Pdb) ```","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",717768441,OPTIONS requests return a 500 error, https://github.com/simonw/datasette/issues/1001#issuecomment-705904679,https://api.github.com/repos/simonw/datasette/issues/1001,705904679,MDEyOklzc3VlQ29tbWVudDcwNTkwNDY3OQ==,9599,simonw,2020-10-09T00:58:32Z,2020-10-09T00:58:32Z,OWNER,So the bug is in this code here: https://github.com/simonw/datasette/blob/703439bdc37e724b01bc6d7a1fc1d955795132f2/datasette/views/base.py#L113-L115,"{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",717768441,OPTIONS requests return a 500 error, https://github.com/simonw/datasette/issues/1001#issuecomment-705904759,https://api.github.com/repos/simonw/datasette/issues/1001,705904759,MDEyOklzc3VlQ29tbWVudDcwNTkwNDc1OQ==,9599,simonw,2020-10-09T00:58:47Z,2020-10-09T00:58:47Z,OWNER,"What should an OPTIONS request return, anyway?","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",717768441,OPTIONS requests return a 500 error, https://github.com/simonw/datasette/issues/1001#issuecomment-705904917,https://api.github.com/repos/simonw/datasette/issues/1001,705904917,MDEyOklzc3VlQ29tbWVudDcwNTkwNDkxNw==,9599,simonw,2020-10-09T00:59:25Z,2020-10-09T00:59:25Z,OWNER,"``` ~ % curl -XOPTIONS https://www.google.com/ Error 405 (Method Not Allowed)!!1 ```","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",717768441,OPTIONS requests return a 500 error, https://github.com/simonw/datasette/issues/1001#issuecomment-705905121,https://api.github.com/repos/simonw/datasette/issues/1001,705905121,MDEyOklzc3VlQ29tbWVudDcwNTkwNTEyMQ==,9599,simonw,2020-10-09T01:00:07Z,2020-10-09T01:00:07Z,OWNER,"The www.djangoproject.com site returns an empty page: ``` ~ % curl -vv -XOPTIONS https://www.djangoproject.com/ * Trying 151.101.42.217:443... * Connected to www.djangoproject.com (151.101.42.217) port 443 (#0) * ALPN, offering http/1.1 * TLS 1.2 connection using TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 * Server certificate: osff2.map.fastly.net * Server certificate: GlobalSign CloudSSL CA - SHA256 - G3 * Server certificate: GlobalSign Root CA > OPTIONS / HTTP/1.1 > Host: www.djangoproject.com > User-Agent: curl/7.70.0 > Accept: */* > * Mark bundle as not supporting multiuse < HTTP/1.1 200 OK < Connection: keep-alive < Content-Length: 0 < Server: nginx < Content-Type: text/html; charset=utf-8 < Allow: GET, HEAD, OPTIONS < Content-Language: en < X-Frame-Options: SAMEORIGIN < X-Content-Type-Options: nosniff < X-XSS-Protection: 1; mode=block < Strict-Transport-Security: max-age=31536000; includeSubDomains; preload < Access-Control-Allow-Origin: https://code.djangoproject.com < Accept-Ranges: bytes < Date: Fri, 09 Oct 2020 00:59:42 GMT < Via: 1.1 varnish < X-Served-By: cache-sjc10047-SJC < X-Cache: MISS < X-Cache-Hits: 0 < X-Timer: S1602205182.833493,VS0,VE305 < Vary: Accept-Language, Accept-Encoding < * Connection #0 to host www.djangoproject.com left intact ~ % ```","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",717768441,OPTIONS requests return a 500 error, https://github.com/simonw/datasette/issues/1001#issuecomment-705905418,https://api.github.com/repos/simonw/datasette/issues/1001,705905418,MDEyOklzc3VlQ29tbWVudDcwNTkwNTQxOA==,9599,simonw,2020-10-09T01:00:54Z,2020-10-09T01:00:54Z,OWNER,https://developer.mozilla.org/en-US/docs/Web/HTTP/Methods/OPTIONS,"{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",717768441,OPTIONS requests return a 500 error, https://github.com/simonw/datasette/issues/1001#issuecomment-705916614,https://api.github.com/repos/simonw/datasette/issues/1001,705916614,MDEyOklzc3VlQ29tbWVudDcwNTkxNjYxNA==,9599,simonw,2020-10-09T01:37:06Z,2020-10-09T01:37:06Z,OWNER,"I'm tempted to imitate Django Rest Framework here: https://github.com/encode/django-rest-framework/blob/2e721cdbc85a924d0b0f093b86fe1497b58fe287/rest_framework/views.py#L514-L521 ```python def options(self, request, *args, **kwargs): """""" Handler method for HTTP 'OPTIONS' request. """""" if self.metadata_class is None: return self.http_method_not_allowed(request, *args, **kwargs) data = self.metadata_class().determine_metadata(request, self) return Response(data, status=status.HTTP_200_OK) ``` That `determine_metadata()` default method does this: https://github.com/encode/django-rest-framework/blob/335054a5d36b352a58286b303b608b6bf48152f8/rest_framework/metadata.py#L29 Note the comment at the top: ``` There are not any formalized standards for `OPTIONS` responses for us to base this on. ```","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",717768441,OPTIONS requests return a 500 error, https://github.com/simonw/datasette/issues/1001#issuecomment-705917015,https://api.github.com/repos/simonw/datasette/issues/1001,705917015,MDEyOklzc3VlQ29tbWVudDcwNTkxNzAxNQ==,9599,simonw,2020-10-09T01:38:49Z,2020-10-09T01:38:49Z,OWNER,"I actually have a sensible `OPTIONS` implementation here: https://github.com/simonw/datasette/blob/a648bb82bac201c7658f6fdb499ff8ac17ebd2e8/datasette/views/base.py#L154-L165 I'm going to set the default one to return a 405 (Method Not Allowed) like Google does.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",717768441,OPTIONS requests return a 500 error,