No rendered image from Chartservlet

[Former Member]

Hello forum ,

We have a irpt file containing a <img> tag which src contains a CHARTSERVLET call .  It used to work fine,  but now it does not show the chart .  ¿ What might be the cause ? .

Thanks in advance,

Note 1:

We are running a 12.2.3 BUILD 167 SP5 MII plataform

Note 2 ( part of the javscript code ) :

var GrafProduccion = document.getElementById("GrafProduccion");

GrafProduccion.src="/XMII/ChartServlet?StartDate=" + fechaHaceUnMes + "&EndDate=" + fechaGraf + "&XAxisMajorTickCount=" + TickCount  + "&Title=Produccion&Width=400&QueryTemplate=ReporteDiarioLPG%2FQueries%2FGraficaProduccionXacute&DisplayTemplate=ReporteDiarioLPG%2FDisplays%2FGraficaProduccion&Content-Type=image%2Fpng&Height=200";

Note 3 ( somewhere inside a table tag ) : 

<img id = "GrafProduccion" width="100%"></img>

[Former Member · Accepted solution]

Please,  can anyone can help me out ?

Thanks in advance ..

[former_member185280 · Accepted solution]

Shot in the dark but I remember having problems once when the img tag didn't initially have a src attribute. It was a mobile browser but I can't remember if it was on ios. 

[Former Member · Accepted solution]

Thanks christian,

I added a blank src attribute to the img tag and did not worked . The img showed a question mark on the browser on the ipads .  No problem for the IE browsers .

Any additional ideas ¡? Thanks for your help . 

[former_member185280 · Accepted solution]

Maybe try removing and creating the entire img tag dynamically instead of just updating the src attribute.

[jcgood25 · Accepted solution]

In the working browser session with IE - use the right-click on the rendered image and get the full path from the properties dialog.  Then try this full URL in Safari to see if it will render properly without any of the script related issues.

[Former Member · Accepted solution]

Thanks Jeremy,

It works .  I will review the script to find if something is wrong .

Thanks

[Former Member]

Hello Jeremy,

I found that everything works fine on the ipads,  by passing directly the environment variables to the src atributte of the img tag .  I used to have the practice to assign environment variables to input tags and then recover their values on some javascript function for further processing.  Fortunally, in this case I do not process any further the environmet variables.

In other words,  this is a work around for this particular case .  If I needed some additional processing for the environment variables , I would be in trouble .

I will close this discussion,  marking yours as the right solution .

Thanks again Jeremy

[Former Member]

hello again,

I forgot to tell that this problems is for the iPADS only . In IE we have no problem.

Best regards,

[former_member185280]

I think at some point safari on ios began to aggressively cache everything. Try adding a random value or timestamp to the end of your url, like ... Height=200" + "&Random=" + Math.random();

[Former Member]

Thanks Christian,

It did not work . Any additional ideas ?

Please, help . Thanks in advance .