JavaScript

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Hi All,

I have created a REST class in which have the Parameter HandleCorsRequest = 1;

I can able to access the API using Postman, but not with my web application. It throws the below error.

Access to XMLHttpRequest at 'http://localhost:52773/IrisVSCode/app/test' from origin 'null' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource.

Last answer 1 hour 16 min ago
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IRIS provides us with anti login CSRF attack mitigation, however this is not the same as a CSRF attack, as login attacks only occur on the login form. There are currently no built-in tools to mitigate CSRF attacks on api calls and other forms, so this is a step in mitigating these attacks.

See the following link from OWASP for the definition of a CSRF attack:

https://www.owasp.org/index.php/Cross-Site_Request_Forgery_(CSRF)

Last comment 7 August 2019
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Please Help.

When I busy capturing the information into the database and when you press insert button then following error  pops up.

Local host:57772 says  A JavaScript exception was caught during execution of Hyper Event: Type Error: Cannot set property 'value' of  undefined .

This error is produced by cache technology. Your assistance in this regard is highly appreciated.

Regards

Godfrey Marobela

Last comment 3 July 2019
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Intro

Most server-client communication on the web is based on a request and response structure. The client sends a request to the server and the server responds to this request. The WebSocket protocol provides a two-way channel of communication between a server and client, allowing servers to send messages to clients without first receiving a request. For more information on the WebSocket protocol and its implementation in InterSystems IRIS, see the links below.

Last comment 26 April 2019
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I have a query that I would like to  have refreshing at certain intervals lets say every 30 seconds with out refreshing the page content using the META TAGS

refreshes the whole page but I have a jquery function that will run at those intervals that I can use the problem is getting the jquery to call my COS function or is the way to do it with pure COS

 

Last answer 11 April 2019 Last comment 12 April 2019
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Hello folks,

I have an JSON object that need to be updated before being parsed into a JSX component.

Source JSON obj:

var Obj = { "data": [
  {"id":1, "text":"Task #1", "project":"10", "sub_project":"10-1" },
  {"id":2, "text":"Task #2", "project":"10", "sub_project":"10-1" },
  {"id":3, "text":"Task #3", "project":"11", "sub_project":"11-1" },
]};

 

Required JSON obj result:

Last answer 7 March 2019
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WebSockets as a communication technology wins increasing importance.
In the SAMPLES namespace, you find a nice example for running a WebSocket Server.
There is also a useful example for a Browser Client. But it is still in the browser. 

My point is:
How to consume the output of a WebSocket Server in your application?

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WebSockets as a communication technology wins increasing importance.
In the SAMPLES namespace, you find a nice example for running a WebSocket Server.
There is also a useful example for a Browser Client. JavaScript does most of the work. 

My point is:
How to consume the output of a WebSocket Server in your application?

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Hi,

I have been trying to implement SPA using routing between two components in a CSP page. 

If i use the line which i commented the page views and gets data from the vue instance (when not using the <route-view> and other 2 vue route functions below).

since i need to implement routing i am using as below, now the property "selectedYear" is not getting data from vue instane and i am getting the below error as well.

I dont know whether i am going down the right path.

please see my code below and help me

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This is a quick note on what happens when, on your CSP page, you call a cache script which returns a %Boolean and store that value in a javascript variable.

When you call a script with language="cache" and returntype="%Boolean" from a javascript script, the return value is interpreted as a string, not as a boolean.

Here's an example:

A cache script that returns (in theory) a "false" value:

Last comment 16 January 2019
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