We saw this error in our web application for the last couple of months:
Uncaught TypeError: Cannot read property 'tagName' of null
At first I noticed that this only happens on Android phones with 4.0.X, no other OS or version.
To debug this, I started by removing code and markup to try and find the culprit.
I did this until I completely emptied the document of everything, and the problem is still there.
The only key is the console line:
Reader :: Recognize :: INFO - Script is evaluating. recognizeArticle Start
Does anyone know why this is happening?
The problem is that we receive a notification of errors, and we cannot ignore this, as this happens on a random line and page every time.
I can add that this happens in all of our web applications.
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(develop✗) $ curl -v localhost:3000/us/app
* About to connect() to localhost port 3000 (#0)
* Trying 127.0.0.1...
* connected
* Connected to localhost (127.0.0.1) port 3000 (#0)
> GET /us/app HTTP/1.1
> User-Agent: curl/7.24.0 (x86_64-apple-darwin12.0) libcurl/7.24.0 OpenSSL/0.9.8r zlib/1.2.5
> Host: localhost:3000
> Accept: */*
>
< HTTP/1.1 200 OK
< Content-Type: text/html; charset=utf-8
< X-UA-Compatible: IE=Edge
< Cache-Control: no-cache
< X-Request-Id: c7d96d6898017b5efa7659028008a8b8
< X-Runtime: 0.011019
< Vary: Accept-Encoding
< Content-Length: 0
< Connection: keep-alive
< Server: thin 1.3.1 codename Triple Espresso
<
* Connection #0 to host localhost left intact
* Closing connection #0