SOLVED: Suggestions To Fix Facebook Error When Parsing A Post With An Invalid Constant String.

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    If you’re seeing a facebook parsing error with invalid constant string error code on your computer, check out these fix ideas.

    Detailed Short Description

    aiohttp returns Message=’invalid 400, fix string' if there is no problem with the request or response.

    Expected Behavior

    facebook error parsing message invalid constant string

    I’m buying a response object that should automatically 204

    Behavior Be Real

    When I send each request and get a 204 error, aiohttp produces the following stack trace:

    Traceback not Last): (last contact file "/home/nhumrich/.virtualenvs/aviary/lib/python3.7/site-packages/aiohttp/client_reqrep.Py", line start 757, during payload messages are equal to waiting for self._protocol.read()  Read file "/home/nhumrich/.virtualenvs/aviary/lib/python3.7/site-packages/aiohttp/streams.py", channel 543 wasted time waiting for himself._server  File "/home/nhumrich/.virtualenvs/aviary/lib/python3.7/site-packages/aiohttp/client_proto.py", level In 195, data_received    messages, updated, queue = self._parser.feed_data(data)  File "aiohttp/_http_parser.pyx", line 523, around aiohttp._http_parser.HttpParser.feed_dataaiohttp.http_exceptions.BadHttpMessage: 400,message='invalid constant string'The exception above could be the direct cause of the following exception:Trace (from last to last mobile):  "/home/nhumrich/cnpy/aviary/aviary/service File.py", 53, which is just a wrapped line    or _function(session) means expect file "/home/nhumrich/cnpy/aviary/aviary/canaries/billing.py", series 131, in create_invoice    Resp3 = Session wait.delete(f'/api/invoices/new_invoice_id')  Delete the file "/home/nhumrich/cnpy/aviary/aviary/session.py", line 32. generally return via pending self.send_request('DELETE', path, vars=vars) headers=headers, "/home/nhumrich/cnpy/aviary/aviary/session file.py", level 45, send_request    by asynchronous self._session.request(method, json=body, url, headers=headers) in the form respectively: from File "/home/nhumrich/.virtualenvs/aviary/lib/python3.7/site-packages/aiohttp/client.Py", level 855, in __aenter__   Self ._resp En = waiting for self._coro  File "/home/nhumrich/.virtualenvs/aviary/lib/python3.7/site-packages/aiohttp/client.py", 391, line in _request  wait or start (conn) File "/home/nhumrich/.virtualenvs/aviary/lib/python3.7/site-packages/aiohttp/client_reqrep.py", line 762, start Message=exc.message, headers=exc.headers) in excaiohttp.client_exceptions.400, clientresponseerror: message='invalid constant string'

    I tried to debug as much as possible but got stuck and this guide has gone as far as it could go. I noticedin this
    client_proto.py Grouping 195 Seen (for example, adding a trace) on which the data is defined

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  • b'HTTP/1.1 204 ContentrnDate: Not Thursday 07 March 2019 GMTrnContent Length: Keep-alive 0rnLogin: 00:30 :24 r nX-Via: heimdallrnServer: canopy-invoicernAccess-Control-Allow-Origin: https://sub.example.domain.comrnAccess-Control-Allow-Credentials: true r nx-heimdall-target: rabbitrnX-Via: canopy-proxy-nrnX-Env: integrnStrict-Transport-Security: includeSubDomainsrnrnnull'

    I like max-age=31536000; As you can see, there is still a weird null on the side, even though the content length is 0. I was wondering if this was a weird forum bug and I was trying to see what the requests for ended with solution > found :

    HTTP/1.1 .Number .204 .Date: .contentrn> .Thursday .07 March 2019 .00:00:27 .GMTrn> .Length .content: .0 rn > .Connection: .keep-aliver . .n> .X-Via: .heimdallrn> .X-Via: .canopy-proxy-nrn> .Server: .canopy-invoice rn> .Access-Control-Allow-Origin: .https://sub .. example.Access-Control-Allow-Credentials: comrn> truern> x- heimdall-target: Integrn> rabbitrn> x-env: Strict-Transport-Security: max age 31536000; =includeSubDomainsrn>rn’)”>

    bytearray(>HTTP/1.1 No 204 Contentrn> Thursday Date: March 2005, 2019 00:00 :27 GMTr n> content-length: 0rn> connection: keep-alivern> heimdallrn> via x: via proxy-canopy-nrn> x: canopy-bill server: rn>Access-Control-Allow-Origin: https://sub.example.comrn>Truern>x-heimdall-target: access-control-allow-credentials: rabbitr n>X-Env:integrrn>Strict-Transport-Security:max-age=31536000;includeSubDomains rn>rn')

    When I call an existing endpoint in the browser, normally the body is not displayed.
    Unfortunately, this is a new private endpoint requiring authentication. So I can’t send about the replication link.
    But if you use this redundant data string, you can reproduce the real error. I usually try to replace the data and remove the null and when that happens I often end up removing the null manually (by editing the aiohttp style locally or with a debugger) with help. good in all areas. The problem is that null is somehow caught off guard and I don’t quite understand how to do it. I tried to put the above specific debugger on the heap, too close read() in client_reqrep.py, but ended up with very different errors, usually header race conditions appear when I attach the debugger. Do you have

    Any idea how this null happened?

    It’s basically a double whammy. First, this error looks like a normal error.Client bug sending a solid 400. I spent a lot of time thinking the error was server related because the status code was 400. It would be great if this obvious error made the “primary server response” invalid and my request not.

    facebook error parsing message invalid constant string

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