When document. Write contains a script tag

In JavaScript, document. the Write function can write content to the document. When there is a <SCRIPT> label in the written content, it will execute the JS script, which has always been the same in the past, however, when debugging a webpage script today, we found that this is not the case.

When <SCRIPT> is an external link script, this external link script will not be executed immediately, but will not be executed until the <SCRIPT> label of document. Write is executed.

In this case, both Firefox and chrome will encounter the <SCRIPT> tag write function that will stop parsing the document and return it, IE8 does not execute the script when it encounters an external link <SCRIPT> tag, but continues to parse the document.

For the moment, follow the IE8 method.