Here is the list of few mistakes that web developers commonly make:
Using Old School HTML Script
Earlier the choices for making the web pages were very few and required implementation of HTML scripts. This was readily replaced by other scripts as it was complicated and was inconsistent across several browsers.
Compatibility with All Browsers
A developer must be found of some particular browser and might test the script in that browser only. This results in compatibility of the script in other browsers thus resulting in the poor quality display of the website which makes a bad image in front of the users.
Prompting the users for the data and implementation of that data to be trusted might be little dangerous as the data received from the users cannot be fully trusted upon.
Create Working Code:
Writing Working Code:
For the web page to be compatible, the developers mostly use a heap of data statement for each browser thus resulting in a pile of data codes. This becomes a problem for the developers as the extra data codes are unnecessary.
The web pages designed by the developers must be responsive i.e. they must be compatible with all the gadgets of different screen size.