Are script errors enabled by default in internet explorer?

Question

I'm developing a website and I'm using a program called IETester to test by website on IE. However, when using IETester I get a script error about every 5 seconds, most likely due to some incompatibility in the code (no errors at all in Chrome or Firefox console). Perhaps these script errors are enabled by default in IETester since it's a debugging program, but are they enabled by default in the general consumer version of Internet Explorer 7 and 8?

Answer 1

Use IE Collection

Utilu IE Collection contains multiple IE versions, which are standalone so they can be used at the same time. This is useful for web developers.

Utilu IE Collection supports both 32-bit and 64-bit versions (if available) of Microsoft Windows 98, 98 SE, ME, NT 4.0, 2000, XP, 2003, Vista, 2008 and 7.

Utilu IE Collection works best under the 32-bit version of Microsoft Windows XP Service Pack 3 (whether or not in a virtual machine).

Version IE:

• Internet Explorer 1.0 (4.40.308)
• Internet Explorer 1.5 (0.1.0.10)
• Internet Explorer 2.01 (2.01.046)
• Internet Explorer 3.0 (3.0.1152)
• Internet Explorer 3.01 (3.01.2723)
• Internet Explorer 3.03 (3.03.2925)
• Internet Explorer 4.01 (4.72.3110.0)
• Internet Explorer 5.01 (5.00.3314.2100)
• Internet Explorer 5.5 (5.51.4807.2300)
• Internet Explorer 6.0 (6.00.2800.1106)
• Internet Explorer 6.0 (6.00.2900.2180)
• Internet Explorer 7.0 (7.00.5730.13)
• Internet Explorer 8.0 (8.00.6001.18702)