Searching the CFML Output Buffer for a String
In one of our projects about 10 years ago, we were fetching HTML fragments from a trusted third-party for inclusion on the website. Instead of using an iFrame or incorporating ajax, which could negatively impact our SEO, we would occasionally fetch the content in the background and update the webpage. While this approach worked fine, there were times when the fragments would contain some inline JavaScript, but wouldn't work because the JavaScript library wasn't loaded... or if loaded within the HTML fragment would cause a problem because now the JS library is being loaded more than once.
To work around this, we wrote some code that checks the existing java output buffer to determine if a string exists or not. For example, if the HTML fragment used jQuery, we'd use streamFind("jquery-") to identify whether the jQuery JS library was already included in the output stream. The UDF returns a boolean response and we'd include script tags to load the jQuery JavaScript library if it returned false.
We've used this UDF for many years, haven't encountered any issues and it's been extremely useful. It's compatible with Adobe ColdFusion, Railo and Lucee CFML. Enjoy!
Source Code
https://gist.github.com/JamoCA/3f5f041f2ca5bc0a5358597a5d78c91f
The above is the detailed content of Searching the CFML Output Buffer for a String. For more information, please follow other related articles on the PHP Chinese website!

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics











Troubleshooting and solutions to the company's security software that causes some applications to not function properly. Many companies will deploy security software in order to ensure internal network security. ...

Solutions to convert names to numbers to implement sorting In many application scenarios, users may need to sort in groups, especially in one...

Start Spring using IntelliJIDEAUltimate version...

Field mapping processing in system docking often encounters a difficult problem when performing system docking: how to effectively map the interface fields of system A...

Conversion of Java Objects and Arrays: In-depth discussion of the risks and correct methods of cast type conversion Many Java beginners will encounter the conversion of an object into an array...

When using MyBatis-Plus or other ORM frameworks for database operations, it is often necessary to construct query conditions based on the attribute name of the entity class. If you manually every time...

How does the Redis caching solution realize the requirements of product ranking list? During the development process, we often need to deal with the requirements of rankings, such as displaying a...

Detailed explanation of the design of SKU and SPU tables on e-commerce platforms This article will discuss the database design issues of SKU and SPU in e-commerce platforms, especially how to deal with user-defined sales...
