Closed Bug 280546 Opened 20 years ago Closed 19 years ago

JavaScript1.2 - foo.replace("?","") dies with "invalid quantifier"

Categories

(Core :: JavaScript Engine, defect)

Product:
Core
Component:
JavaScript Engine
Platform:
x86
Windows XP
Type:
defect
Priority:
Not set
Severity:
normal

Tracking

()

Status:
RESOLVED WORKSFORME

People

(Reporter: Erb, Unassigned)

References

(
URL
)

Details

User-Agent:       Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)
Build Identifier: 

The URL produces a popup window with the following source:

<html>

<head>
<title>eTrust SSO for Web</title>
<SCRIPT LANGUAGE="JavaScript1.2">
<!--
window.onload = loadFrame;

function loadFrame() {
  var loginURL = "/?SSOCMD=SSOLOGIN";
  var query = top.location.search;
  if ( query ) {
    loginURL = query.replace("SSCMD", "SSOCMD" );
    loginURL = loginURL.replace("SSCMD", "SSOCMD" );
    loginURL = loginURL.replace("?query=", "?");  
  }
  top.data.location.replace(loginURL);
}
//-->
</SCRIPT>
</head>
<frameset noresize framespacing="0" frameborder="0" border="false" cols="500"
rows="360,0">
  <frame name="data" noresize scrolling="no" marginwidth="0" marginheight="0"
src="data.html">
  <body>
  </body>
</frameset>
</html>

Note the tricky way the URL is replaced.  This works on IE but not Firefox.

Reproducible: Always

Steps to Reproduce:
See Details
Actual Results:  
Only the page background is visible.

Expected Results:  
New URL is navigated to in popup window, showing a form.
Sorry, forgot the Firefox version:
Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.5) Gecko/20041107 Firefox/1.0
Version: unspecified → 1.0 Branch
Try disabling the popup blocking, otherwise popups in load events aren't going
to appear.


Popups are not being blocked in this scenario.
I suspect that will turn out to be an intentional feature of JavaScript1.2,
which was a rather different beast than most JavaScripts. While

<script language="JavaScript">
alert("f?oo".replace('?oo','ee'));
</script>

alerts "Fee",

<script language="JavaScript1.2">
alert("f?oo".replace('?oo','ee'));
</script>

dies with an "Error: invalid quantifier ?" in the JS Console.
Assignee: firefox → general
Component: General → JavaScript Engine
Product: Firefox → Core
QA Contact: general → pschwartau
Summary: tricky JavaScript replacement of current page URL does not work → JavaScript1.2 - foo.replace("?","") dies with "invalid quantifier"
Version: 1.0 Branch → Trunk
It may be unavoidable to have to say that Microsoft sets the standard.
I think that's pretty much the reason behind most pages that work "wrong"
in Mozilla/Firefox.
This error occurs for JavaScript 1.1-1.4, but not in JavaScript 1.5. The ECMA
262 1 and 2 Specifications had the first argument as a regular expression
however ECMA 262 3 has the first argument as either a string or a regular
expression. In JS 1.1 - 1.4, We convert the argument to a regular expression but
in JS 1.5 we treat it as a string.

Another example where older JS version emulation bites us.
Fixed for 1.8b2 by checkin for bug 255895.

/be
Status: UNCONFIRMED → RESOLVED
Closed: 19 years ago
Resolution: --- → WORKSFORME
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