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#Frontend

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Front-end web development is the practice of converting data to a graphical interface, through the use of HTML, CSS, and JavaScript, so that users can view and interact with that data.

Learn more.

We have an web application accessed using https, that uses CSP technology with frames.

The initial 'login' is via a single CSP page, which then redirects to another CSP page which creates the frames (4 in all) and loads a CSP page in each of those. For the most part the frames load without error, but sometimes when logging in and sometimes while using the system ' 5916 Illegal CSP Request ' errors occur.

I say 'login' in inverted commas as a Cache login is not performed just an application login, I don't know if that's relevant so thought I'd mention it.

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Hello Cache Developers! The purpose for this post is to outline a coding challenge that I have encountered when trying to use shortcuts (i.e. CTRL+G) within a ZEN application. Allow me to provide a summarized background:

Our application has a ZEN page (call it the PPL page) with a tablepane that displays a list of records. This page also has an iFrame (#1)

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I have a CSP page that needs to allow the user to submit a file. I have a form with an element in it <input type="file" name="file"/> which allows the user to select the file they want to upload from their local filesystem.

How do I go about actually getting the file to be sent to the server?

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I want do to a "simple thing". Show a dynamic log of actions in the browser as we can see on Terminal. For that, I guess to make a simple CSP Page that show a new line every WRITE command is the thing I need.

But how I refresh after each WRITE?

How I can refresh the content automatically?

I made a simple CSP Page and in method OnPage I do this test:

write "Start..",!
for i=1:1:10{
hang 1
write "Doing "_i,!
}
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Question
· Jul 15, 2019
Non CSP Files

CSP pages extend %CSP.Page. What about html/css/js/etc that are hosted on the same web application? Is there any way to override how they're processed like with how you can override a CSP page and CSP REST logic?

Thank you!

David

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Good afternoon, I have image files stored on disk. I would like to display those images in an <image> control as the end user clicks on rows in a tablepane. I already do this with image data stored in a cache database:

s imageComp = %page.%GetComponentById("ImgTab"_tLdCnt)
s imageComp.disabled=0
s tId=rsId.Get("ID")
s tPageObj=##class(My.PageObj).%OpenId(tId)
s oid=tPageObj.ImageBLOB.%Oid()
s encryptedOid=..Encrypt(oid)
s imageComp.src="%25CSP.StreamServer.cls?STREAMOID="_encryptedOid

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I am going to start playing with Zen Mojo (again) and as I understand it there are two ways to manage moving data to/from your Zen Mojo page:

  • interacting with REST services
  • using Mojo's built-in transport

I would like to understand the pros and cons of each approach. Which is recommended in different situations and why? I would like to create a sample application that will hopefully be reusable and helpful to others and I would like to understand which approach to pick for my app.

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Hello,

I've got a csp page that has successfully set up a websocket connection to a Cache class. When the websocket object's close function is triggered at the browser I was expecting one of the class' methods to fire at the server. The onclose method is triggered at the browser but nothing at the server. Is a method supposed to fire at the server?

Thanks,

Dan

Cache for Windows (x86-64) 2015.1.4 (Build 803_6) Tue May 15 2018 12:08:36 EDT

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