How to redirect to another webpage from Google Apps Script Gadget?

Question

I'm building a web application in Google Sites. Currently, I have two forms, the first one loads a Spreadsheet and displays it as a table, then when you select a row from the table, the script calls another Web App with a GET request and with a few parameters (as ?rowIndex=X&columnIndex=..).

This is working fine if I deploy the first form as a Web App. But if I insert the first script as a "Google Apps Script Gadget" in my Google Sites webpage it seems that is embedded as an Iframe that cannot redirect to other webpages/scripts (it just shows a blank iframe).

Is there any way to solve this without merging both scripts in one?

For the redirect, I'm using javascript in the HTML form.

windows.location="secondScriptUrl"+"?parameters..." 

and the second script just generates the HTML from the doGet function

function doGet(e) {
   return HtmlService.createTemplateFromFile('index').evaluate();
}

Massengale

why are 2 web apps being used out of curiosity? – Itinerancy

Because one is used to show information stored in a Spreadsheet and when you select one row of data, the data is sent to the other Web App that let you edit and manage the information. – Massengale

HtmlService doesn't allow to acces different html files in the same project, you have to make a GET request again and I tought that It was better to have separate projects. – Massengale

right, it's a single-page app but you can certainly store the the needed html for other page views client side or write the change logic in JS. Running a google.script.run.yourFunctionToGetHtmlContent(). is going to be faster than a whole browser window refresh too. That .top was a missing piece for me on redirects though. – Itinerancy

Answer 1

I solved it adding:

<base target="_top">

to the html code and changing the javascript redirect:

window.top.location.href = url; 

Massengale

From today, I noticed that it is not working anymore. – Saylor