Hey all,
The company I work for is using the Visualization API to display
client data and statistics in chart form. We have built our charts to
interact with clicks. For example, clicking a column representing a
certain user will:
1) Return the row number R that the clicked column belongs to the
select handler
2) In the select handler, search the DataTable at row R for that
user's id in column C
3) In the select handler, Make an AJAX request to our servers using
user's id
4) Once the data is returned, we create a new DataTable, add our data
to it, and re-draw the chart
THE PROBLEM: This interaction will sometimes cause a "Permission
Denied" error in IE (specifically IE9) as a pop-up box. The chart will
actually finish drawing in spite of this error, but it would be
unprofessional to have this error displayed to our clients using IE9.
I'm unable to catch the error with a catch statement either.
The error never happens when the chart first loads, only when 'drilled
down' via interaction or 'drilling back up' via a "Back" button we
have (We keep track of a chart's state via a "controller" type class.
The select handler gets information from the controller class)
Because the VisAPI.js is minified, I'm unable to see what exactly is
causing this problem, but I've managed to decipher some of the code by
debugging. The errors I've seen are:
(all from the file: format+en,default,corechart.I.js)
line 482, character 54:
minified: return this.fh[Db](a);
unminified (as much as possible): return this.fh['createElement']
("v:rect");
line 481, character 284:
min: qa(c[lb], a);
un: qa(c["firstChild"], "nameOfColumnClickedInSelectHandler");
line 583: character 16:
min: return a&&a[Xc]?a[Xc][Ac](a):1;
un: return a&&a["parentNode"]?a["parentNode"]["removeChild"](a):1;
IE9's debugger/object inspection tool shows objects like a or fh's
properties to have values of "Access is denied".
I'm not sure what I'm doing wrong. I've been searching for a few days
and any possible symptoms I've found have been ruled out.
We server off of an HTTPS server so it isn't a HTTP<-->HTTPS problem.
The first error seems like a problem creating a v:rect during the
draw. Second seems related to the select handler, and I have no idea
what's happening in the third.
Does anyone have any suggestions for this? I'm absolutely stuck on
what is causing this issue!
(I've seen a similar issue at
http://code.google.com/p/google-visualization-api-issues/issues/detail?id=483&can=1&q=permission%20denied&colspec=ID%20Type%20Status%20Priority%20Milestone%20Owner%20Summary%20Stars
but it doesn't offer a solution, and I do not believe we have the same
problem with our firewall)
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