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Category: Web Development

Javascript: resize an image using canvas
  • Javascript

Javascript: resize an image using canvas

  • Posted on 2021-06-022021-06-11
  • by dulare

As the continuation of my previous posts on Preview image before uploading and Sending upload image contents to the server before form submission, I want to add one more feature.…

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Sending upload image contents to the server before form submission
  • Javascript

Sending upload image contents to the server before form submission

  • Posted on 2021-05-192021-06-10
  • by dulare

In my previous post, I was writing about previewing images before uploading. It is handy if you want to display the uploaded image to the user before form submission. But…

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Preview image before uploading
  • Javascript

Preview image before uploading

  • Posted on 2021-05-122021-06-08
  • by dulare

On some of the HTML forms, users should add a picture or an image. In such a case, it is handy to display a preview of the image – just…

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Package multiple named files using cfzip
  • ColdFusion

Package multiple named files using cfzip

  • Posted on 2021-05-052021-06-08
  • by dulare

In ColdFusion (and in Lucee too 🙂 ) you can create ZIP files easily using cfzip. The usage is simple when you want to package a single file or the…

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ColdFusion Admin: error accessing this page
  • ColdFusion

ColdFusion Admin: error accessing this page

  • Posted on 2021-04-212021-05-11
  • by dulare

One may say that this is an old one. Back in 2014, Charlie Arehart wrote an excellent blog post describing one of the sources of this issue. Since I found…

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Infinite thread
  • ColdFusion

Infinite thread

  • Posted on 2021-04-142021-04-30
  • by dulare

As an addition to the Avoid duplication of long-running threads topic, I decided that I want to run my job “infinitely”. I have so much data to process, that it…

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Avoid duplication of long-running threads
  • ColdFusion

Avoid duplication of long-running threads

  • Posted on 2021-04-072021-04-30
  • by dulare

I started to use ColdFusion threads recently. I knew that they exist, but I saw no use for them in my code before. Recently I started to process large datasets…

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URL variable issues in Lucee
  • ColdFusion

URL variable issues in Lucee

  • Posted on 2021-03-312021-04-23
  • by dulare

We are switching from ColdFusion to Lucee for some of the sites, and we are facing various small issues. This is one of them. Take a look at such a…

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CGI.remote_addr issue in Lucee on Apache
  • ColdFusion

CGI.remote_addr issue in Lucee on Apache

  • Posted on 2021-03-242021-04-23
  • by dulare

When running Lucee on Apache, the user request is processed first by Apache and proxied to Tomcat which is handling the Lucee code execution. Rather a long and complicated path.…

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Lucee on IIS – HttpException (0x80004005): Request timed out
  • ColdFusion

Lucee on IIS – HttpException (0x80004005): Request timed out

  • Posted on 2021-03-172021-04-19
  • by dulare

I’m moving some of my servers from ColdFusion to Lucee, so I’m still learning the differences between these two engines. One of the things I noticed is that I’m getting…

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